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EVC21002

Corrugated Wrap-Around Box with Tongue Lock

Available in a wide range of custom configurations & material selection.
Order 1 sample. Or order 100K+ units. Or anything in between.
Affordable delivery across North America.
Design support, warehousing, testing, assembly available.
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Product details

Top highlights

Friction-fit tongue lock for easy, repeated opening
Deep front cutout highlights inner contents upon opening
Suited for E-flute or B-flute to maintain lock flexibility

About this product

A one-piece corrugated presentation box designed for a clean unboxing experience and easy re-closure. Instead of standard roll-end walls, the sides wrap backward from the front panel, and the lid secures with a friction-fit tongue lock.

The deep front cutout makes the lock easy to operate and gives the box a distinct retail look, but it reduces vertical stacking strength compared to standard mailers.

Common uses

Subscription boxes
Marketing kits
Retail-ready storage boxes

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Presentation and Kitting Applications

Subscription and Kitting

The tongue lock provides a satisfying unboxing experience and allows the customer to easily reclose the box for ongoing storage. The front cutout frames the internal contents as soon as the lid is lifted.

Retail-Ready Storage

The clean lines and simple closure work well for shelf presentation or home storage where heavy vertical stacking is not required.

Premium Sample Distribution

The distinct wrap-around assembly and front lock offer a different handling feel than standard tuck-top mailers, helping premium samples stand out during the initial reveal.

Internal Component Organization

Often used as an inner presentation box that ships inside a master carton, keeping the unboxing experience pristine and protecting the tongue lock from courier damage.

Subscription and Retail Storage Programs

E-commerce Brands

Useful for brands that want a memorable unboxing sequence but plan to ship the presentation box inside a larger, more secure outer shipper.

Marketing and Sample Kits

The unique wrap-around assembly and front lock offer a different handling feel than standard tuck-top mailers, helping premium samples stand out.

Corporate Gifting and Onboarding

The easy-to-open tongue lock and framed front cutout make this a strong choice for presenting welcome kits or corporate gifts that will be kept on a desk.

When to Consider Standard Mailers

Heavy Stacking Requirements

The deep front cutout removes vertical support from the front wall. If pallets will be stacked high without outer master cartons, a standard Roll-End Tuck-Top is a safer choice.

Rough Parcel Transit

The tongue lock is secure for handling but may open if dropped. For direct-to-consumer shipping without an outer box, a mailer with dust flaps and a secure wafer seal should be evaluated.

Board Choice and Lock Flexibility

Flute Profile and Lock Function

The tongue lock relies on the board's flexibility to snap into place. E-flute provides the best balance of rigidity and flex. Thicker boards like double-wall will make the lock too stiff to operate easily.

Assembly Labor

This box is erected entirely by hand. The sequence involves wrapping the sides backward and holding them in place while the back wall and lid are folded over, which can dictate the packing rhythm.

Outer Shipper Requirements

Because the tongue lock may catch or open during rough transit, decide early if this box will ship inside a master carton or if it needs a strong external wafer seal for direct mailing.

Print Surface Allocation

The lid, front wall, and the inside of the lid are prime areas for branding, as they are immediately visible during the unboxing sequence. The front cutout should be factored into the artwork layout.

Adjusting the Cutout and Tongue Proportions

Cutout Depth

The depth of the front U-shape can be adjusted. A deeper cutout reveals more of the product but further reduces the front wall's rigidity.

Tongue Width

The locking tongue must remain slightly wider than the cutout to catch behind the front panel. Adjusting the cutout width requires a corresponding change to the tongue.

Tuck Flap Length

The tuck flap that sits inside the front wall can be lengthened for a more secure friction fit, though this requires more board and may interfere with internal inserts.

Packing details

Print and Branding Surfaces

The lid, front wall, and the inside of the lid are prime areas for branding, as they are immediately visible during the unboxing sequence.

Additional notes

Hand assembly sequence

Because the side walls wrap backward and are held by the back wall and lid, packers must hold the box together manually until the final tuck is made. This can be slower than erecting a standard snap-bottom or roll-end box.

FAQs

Can this box be shipped directly in the mail?

It is generally better used as an inner presentation box. If shipped directly, the tongue lock should be secured with a strong wafer seal or tape to prevent it from opening during rough transit.

Does this box require glue for assembly?

No, it is a one-piece design that folds and locks together entirely through friction and the final tongue closure.

Why does the front wall have a deep cutout?

The cutout provides finger access to release the tongue lock and allows the tongue to flex inward during closing. It also creates a distinct visual frame for the contents.

What board thickness is a good fit for the tongue lock?

Thinner profiles like E-flute or B-flute are usually better choices. The locking tongue needs to flex slightly to pass through the cutout; thick or double-wall board makes this action too stiff.

How does the assembly differ from a standard mailer?

Instead of the side walls rolling over from the base, the side walls on this box attach to the front panel and wrap backward, held in place when the back wall and lid are closed.

Can the front cutout be removed?

The cutout is mechanically necessary for the tongue lock to function. If a solid front wall is required, a different box style should be selected.

Can I use custom inserts with this box?

Yes, corrugated or foam inserts work well to hold products in place, especially since the front cutout exposes the interior immediately upon opening.

Which panels are visible when the box is opened?

The inside of the lid, the inner tuck flap, and the products themselves are immediately visible. The front cutout frames the view, making it a key area for branding.