Custom Ear Lock Mailer Boxes
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Tape-free custom ear lock mailer boxes with tuck-in corner locks for secure e-commerce shipping.
$0.96
UNLIMITED CUSTOMIZATION OPTIONS
A printing technique employing a plate to transfer designs onto paper. Ideal for extensive print jobs.
Plate-free digital printing transfers designs electronically, cost-effective for short runs.
Screen printing is a method using a mesh screen and stencil to transfer ink onto a substrate.
Quick-drying printing technique utilizing ultraviolet lights for ink curing, yielding a glossy finish.
Consisting of water-based pigments, Ensures top-notch color output with a 100% eco-friendly profile.
Fluorescent inks are vibrant, UV-reactive pigments that emit vivid colors under ultraviolet light.
Generate pure colors using specific ink formulas to consistently & precisely reproduce color in printing.
Produce metallic colors through precise ink formulations to replicate color in printing.
Premium bleached white paperboard, specially coated on one side to enhance printing & finishing.
Bleached white paperboard, coated on both sides to achieve superior printing quality and finishes.
Top-notch textured paper, perfect for adding a touch of style when wrapping up durable boxes.
A unique paper material showcasing a shiny or matte metallic laminated surface.
Bleached kraft paper crafted from a blend of new and recycled pulp, coated on both sides for optimal printing.
Kraft paper produced from a combination of new and recycled paper pulp, with coating on both sides for printing purposes.
Kraft paper dyed black, manufactured from a blend of new and recycled pulp, and coated on both sides for printing applications.
Crafted from recycled grey chipboard cardboard, also known as uncoated recycled paperboard, ideal for luxury rigid boxes.
Unique paper material showcasing a holographic laminated surface in either glossy or matte finish.
Grey chipboard, one-sided white cardboard with a smooth, printable surface, ideal for luxury rigid boxes.
Gloss lamination enhances visual appeal by applying a shiny finish, and protecting printed materials.
Matte lamination offers a non-reflective finish, providing elegant appearance to printed materials.
Made with a smooth lamination that feels like touching a peach, can choose between a satin or matte.
A UV coating is applied to a specific area and then cured using ultraviolet light to make it sturdy.
A transparent coating is applied using the CMYK printing technique, and it comes in gloss, satin, or matte.
A fast-drying coating that undergoes curing through ultraviolet light is offered in both gloss and matte.
In a printing method, dies are pressed onto the back of the material to create a raised motif.
A printing technique that involves pressing dies onto the front of the material to create a raised motif.
In foil relief printing, foil is transferred at high temperatures, often employing multiple colors.
Craft a die-cut shape with a plastic film layer, revealing a window to showcase the product inside.
We recommend the ideal material and add-ons like lamination, foiling, embossing UV, etc.
Get Free Design Support with your box 3d Renders or Send Your Design File for Printing.
Upon design approval, we’ll print and conduct quality checks before shipping the boxes to you.
Technical Specifications
| Dimensions | Available in Custom Sizes |
| Printing | CMYK, Pantone Color, Full Color & No Printing |
| Paper Stock | Eco-Friendly Kraft, Corrugated Cardboard & Premium Rigid Stock |
| Coating | Semi-Gloss AQ, Gloss UV, Matte UV & Spot UV |
| Default Process | Die Cutting, Gluing, Scoring, Perforating |
| Custom Options | Window Cut Out, Gold/Silver Foiling, Embossing, Raised Ink |
| Proof | Digital Proof, 3D Mock-Up |
| Shipping | Shipped FLAT (Free Shipping Across USA & Canada) |
| Help | For further inquiries and Quotes, contact us or email at sales@cratpackaging.com |
Custom ear lock mailer boxes use tuck-in corner locks instead of a straight tab, giving the box a tighter, more secure seal for shipping without tape.
Custom Ear Lock Mailer Boxes Specifications
| Box Style | Ear lock (tuck-in corner) mailer |
| Material | E-flute or B-flute corrugated |
| Assembly | No tape needed, corner-lock closure |
| Best For | E-commerce shipping, apparel, subscription boxes |
| Print Options | Full-color exterior and interior printing |
| Order Volume / MOQ | No minimum on standard sizes |
| Shipping | Flat-packed nationwide shipping |
Who Buys Ear Lock Mailer Boxes
E-commerce brands that ship apparel, accessories, or subscription products choose the ear lock closure over a standard tab-lock mailer box when they want a tighter seal that resists popping open in transit.
How the Ear Lock Closure Works
Each corner flap tucks into a matching slot (‘ear’) on the adjoining panel, locking the box shut from all four corners at once rather than relying on a single tab. That makes it harder for the box to spring open under pressure during parcel handling.
Eco-Friendly Shipping Material
Like other corrugated mailers, ear lock boxes are curbside recyclable and skip the tape and poly mailer waste stream entirely. A 2025 McKinsey consumer survey found that over 60% of U.S. consumers pick green packaging when they have the choice, which is why more brands are pairing recyclable board with responsible print processes.
Branding on Ear Lock Mailers
The flat exterior panels print cleanly in full color, and because the box folds from a single flat blank, interior branding is available on the same production run. For bulk warehouse shipping instead, see our custom corrugated mailer boxes.
Why Order Custom Ear Lock Mailer Boxes From Crat Packaging
- Tuck-in corner lock for a tighter seal than standard tab-lock mailers
- No tape needed at any point in the packing process
- Full-color interior and exterior printing available
- No minimum order on standard sizes
- Sized to match common e-commerce SKUs
- US-based production with fast turnaround
How to Order
- Send your product dimensions or SKU list
- Choose a mailer size and flute weight
- Approve your print proof
- Place your order and receive flat-packed cartons ready to fold
Frequently Asked Questions
What makes an ear lock mailer different from a standard mailer box?
The ear lock design tucks each corner flap into a matching slot for a four-corner locked seal, rather than a single tab closure, giving a tighter seal during shipping.
Do ear lock mailer boxes need tape?
No, the corner-lock closure holds the box shut without tape or glue.
What sizes are available?
Standard e-commerce sizes are available as templates, with custom dimensions available to match your SKU.
Is there a minimum order quantity?
No minimum on standard sizes.
Can I print on the interior panels?
Yes, interior branding is available on the same production run as the exterior print.
How fast do ear lock mailer boxes ship?
Most orders produce and ship within 10 to 12 business days after proof approval.
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