Small valuables often move with us throughout the day.

A phone may stay in the car for a short time. A passport may need to be kept together with travel documents. Cash, keys and other personal belongings may need a separate place at home, in the office or while traveling.

The SHENGJIABAO SJB-24CSM was developed around this type of everyday storage need.

It is a compact portable combination lockbox with a three-digit mechanical combination lock, foam-lined interior and steel security cable. Its low-profile steel enclosure makes it easy to place in different environments without taking up the space of a traditional cabinet-style safe.

For distributors, importers and private-label buyers, the product also offers a broader market position than a single-use car safe. It can be presented as a portable lockbox for personal valuables, vehicle storage, travel accessories and selected compact handgun storage applications.

A Compact Alternative to a Traditional Safe

Not every storage situation requires a large home safe.

For smaller personal items, a compact lockbox can be easier to place and easier to move.

The SJB-24CSM uses a flat rectangular enclosure with rounded corners, giving it a simple and practical profile. Compared with a conventional upright safe, the product can fit into spaces where height is limited.

Depending on the available space, a portable lockbox may be placed inside a drawer, cabinet, luggage compartment or vehicle storage area.

That makes it particularly useful for customers who want a dedicated lockable container without installing a larger safe.

The product is also easy to understand from a retail perspective. Its purpose is visible immediately: a compact steel box, a mechanical combination lock and a cable attachment for flexible placement.

Three-Digit Mechanical Combination Lock

The SJB-24CSM uses a three-digit mechanical combination lock together with a round turning knob.

This keeps the operating system straightforward.

There is no electronic keypad, battery compartment, fingerprint reader or app connection on this version. For many customers, that simplicity can be an advantage.

A mechanical combination lock does not depend on batteries for normal operation, and the user does not need to carry a separate key for everyday access.

The three number wheels are positioned directly beside the turning knob, so the lock type is also easy to identify in product photography or retail displays.

For distributors building a wider safe range, this gives the SJB-24CSM a different position from electronic home safes or biometric boxes.

It is a simpler, more portable product intended for smaller valuables and flexible placement.

Foam-Lined Interior for Personal Valuables

Inside the box, both the lid and storage area are lined with dark foam.

This creates a softer contact surface for the items placed inside and helps prevent small valuables from resting directly against the steel enclosure.

The interior can be used for items such as:

• mobile phones
• passports
• cash
• keys
• small documents
• personal accessories
• selected compact valuables

The open product photographs also show that the usable space can accommodate more than one small electronic device depending on its size.

For buyers preparing retail listings, the combination of exterior dimensions and usable internal dimensions is especially useful because customers can compare the available space with the items they intend to store.

Steel Security Cable for Flexible Placement

A steel security cable is another practical part of the SJB-24CSM design.

The cable connects to the side of the lockbox and includes a looped end, allowing the box to be secured around a suitable fixed structure.

This gives the user more placement flexibility than relying only on the weight of the box itself.

In a vehicle, for example, the cable can be useful when the user wants to position the lockbox in a storage area while keeping it attached to an appropriate anchor point.

The same concept can also be useful in temporary accommodation, offices or other locations where a permanently installed safe is not practical.

For a portable safe box, the combination of compact size and cable attachment is an important part of the product concept.

A Portable Lockbox for Vehicle Use

Vehicle storage is one of the most natural applications for this model.

People often carry phones, wallets, documents, cash or other personal items in the car, but leaving them loose inside the vehicle is not always ideal.

A compact vehicle safe provides a separate enclosed space for these belongings.

Because the SJB-24CSM is relatively flat, it can be considered for different storage positions depending on the vehicle layout.

The actual location will vary between vehicles, but the product is designed around the idea of portable, space-conscious storage rather than permanent installation.

For automotive accessory distributors, this also makes the model easier to position alongside other travel and vehicle security products.

Useful at Home and in the Office

The SJB-24CSM is not limited to vehicle use.

At home, it can be used for personal items that do not necessarily need a full-size safe.

A passport, spare keys, emergency cash or a second phone may only require a compact storage space.

The same applies in an office.

In shared working environments, some users simply want a separate lockable container for their personal belongings.

Because the box can be moved, it does not need to remain in one permanent location.

This flexibility broadens the product beyond the traditional idea of a car lockbox.

Practical for Travel and Temporary Storage

Portable storage also becomes useful when the user is away from home.

The SJB-24CSM can be taken with luggage or transported to another location when needed.

Its compact format means it does not occupy the space of a conventional safe.

This can make it useful for customers who travel with personal documents, electronics or other small valuables and prefer to keep them together in one lockable container.

The steel cable also gives the user an additional way to secure the box when a suitable attachment point is available.

For retailers, this creates another natural product angle: a portable valuables lockbox that can move between home, vehicle and travel use.

Small Handgun Storage as an Additional Application

The SJB-24CSM can also be used for certain compact handguns when the firearm fits within the available interior space.

This should be considered an additional use rather than the only product positioning.

The product can therefore serve two different types of market demand.

One group of customers may be looking primarily for a portable valuables box for phones, passports, cash and personal belongings.

Another may be looking for a compact handgun lockbox for a particular firearm size.

For the second application, buyers should match the usable internal dimensions with the intended handgun and follow the applicable storage requirements in their local market.

This allows distributors to keep the general product positioning broad while developing more specialized marketing where relevant.

Why Portable Lockboxes Work Well for Retail

From a B2B perspective, compact lockboxes have several advantages.

They are easy for customers to understand.

They do not require complicated installation.

They can be demonstrated visually with common personal items.

And the same product can be presented in several retail categories.

For example, the SJB-24CSM may fit into:

• home security products
• vehicle accessories
• travel security
• personal valuables storage
• compact safe boxes
• selected handgun storage categories

This flexibility can be useful for distributors that sell through more than one channel.

A vehicle-accessory customer may focus on the security cable and compact profile.

A home-security retailer may focus on passports, cash and personal valuables.

A travel-oriented seller may focus on portability.

The product itself remains the same, while the presentation can be adapted to the target customer.

From Raw Steel Shell to Finished Lockbox

The finished product begins with the steel enclosure.

In our production video, the early-stage steel shells can be seen before the final lock components, foam lining and accessories are installed.

Later workstation processes gradually turn these metal parts into the finished SJB-24CSM.

This type of production footage gives buyers a better understanding of what sits behind the final product photograph.

The smooth black exterior, installed combination lock, interior foam and security cable are all part of a manufacturing process that begins with basic steel components.

For B2B customers, seeing both the unfinished shell and the finished product can also make sample evaluation and product development discussions more concrete.

Watch the SJB-24CSM Production Process

The video above shows part of the SJB-24CSM production process, from unfinished steel shells and workstation processing to the final portable combination lockbox.

A Straightforward Product for OEM and Private-Label Projects

The SJB-24CSM can also serve as a starting point for OEM or private-label projects.

Depending on the project requirements and order quantity, discussions may include:

• branding
• product labels
• instruction manual language
• packaging design
• retail presentation
• carton markings
• finish or color requirements
• accessory configuration

If a project requires structural changes, a different internal layout or another lock system, feasibility can be reviewed separately.

This is especially relevant for distributors serving different regions.

A customer in Europe may prefer one packaging style.

A South American importer may emphasize vehicle use.

An Asian retailer may position the product around compact home storage.

A North American customer may develop a separate presentation for portable handgun storage.

The product platform can remain consistent while branding and market positioning are adapted to the sales channel.

A Small Safe with More Than One Use

The strongest feature of the SJB-24CSM is not one complicated function.

It is versatility.

The product combines a compact steel enclosure, mechanical combination lock, foam-lined interior and steel security cable in a format that can move between different environments.

It can be used in a vehicle.

It can be kept at home.

It can be placed in an office.

It can travel with the user.

And where appropriate, it can also provide storage for certain compact handguns.

For distributors and private-label buyers, that gives the product more than one selling story without changing the basic design.

SHENGJIABAO supports OEM and ODM safe box projects for overseas customers. For information about the SJB-24CSM, available specifications, sample requirements or private-label options, contact us with your target market and project details.

Frequently Asked Questions

What is the SJB-24CSM?

The SJB-24CSM is a compact portable combination lockbox designed for storing small personal valuables in vehicles, homes, offices and travel situations.

What type of lock does it use?

It uses a three-digit mechanical combination lock together with a round turning knob.

Does the lockbox require batteries?

No. The photographed SJB-24CSM uses a mechanical combination lock rather than an electronic lock.

What can be stored inside?

The interior can be used for phones, passports, cash, keys, small documents and other personal valuables that fit within the usable internal space.

Does it have an interior lining?

Yes. The inside of the lid and base are lined with foam to provide a softer surface for stored items.

Is a steel cable included?

The product is shown with a steel security cable that attaches to the side of the lockbox and provides an additional placement option around a suitable fixed structure.

Can the SJB-24CSM be used as a car safe?

Yes. Vehicle storage is one of its main applications. The actual placement depends on the available space in the vehicle.

Can it also be used at home?

Yes. The compact format also makes it useful for passports, cash, keys, electronics and other small valuables at home or in an office.

Can it store a handgun?

Certain compact handguns may fit depending on their dimensions. Buyers serving this market should compare the firearm dimensions with the usable internal space and follow applicable local storage requirements.

Is the SJB-24CSM customizable for OEM orders?

OEM and private-label requirements such as branding, labels, instruction manuals and packaging can be discussed according to the project. Structural or lock changes should be reviewed separately for feasibility.