Custom Mailer Box with Self-Docking Tab

A corrugated mailer box that locks itself shut — no tape, no glue, no fuss. The self-docking tab snaps into place when the box is folded, keeping contents secure through shipping. Made from 100% recyclable corrugated cardboard, fully printable inside and out. Ships flat to save freight. MOQ 500 pcs.

Key Features

• E-flute or F-flute Options – Fine flute for sharp print clarity and slim profile.

• Self-Locking & Tape-Free – Interlocking tabs snap shut, no packing tape needed.

•Crush-Resistant Edges – Reinforced sidewalls protect contents in transit.

Why Us?

Tab-lock geometry is dialed in-house,so the lid snaps shut without tape yet doesn’t flare open after courier sorting. E-flute for crisp print, B-flute for heavier DTC loads.

Inside-the-lid is part of the ad spend — most brands waste the interior panel. We print your thank-you, social handle or QR on the inside lid as standard, turning a tape-free shipper into a double-sided unboxing surface (CMYK + foil/spot UV on the same die-cut blank).

Right-sized to cut dimensional-weight charges — we dieline to your product’s real L×W×H with 2–5mm clearance, so you’re not paying freight for empty air. Ships flat, pops up in seconds, pallet density far higher than assembled RSC cartons.

FAQ

Q: How to choose the right corrugated flute for my mailer box?

A: It depends on three things: your product weight, product size, and shipping distance. E flute: Good for small, light items like jewelry, cosmetics, phone accessories, or greeting cards. Gives the smoothest print surface and a premium feel. B-flute: Good for medium-weight items like apparel, books, or small electronics. Better cushioning than E-flute while still printing well. C-flute: For heavier or fragile items — mugs, bottles, larger sets. Maximum protection but bulkier and harder to print fine detail on. Need help picking? Send us your product dimensions and weight — we'll recommend the right flute for free.

Q: Can I print inside the box too?

A: Sure. We support full CMYK printing on both exterior and interior panels. Many brands add a logo or thank-you message inside.

Q: What logo file format request?

A: Logo file as AI, PDF, or high-res PNG (300 dpi+) would be great to display your box perfectly.

Tailored to Your Needs.

Step 1: Please advise your preferred box size. 

Step 2: Choose the suitable materials and finishings for your box. 

• Materials: Strong corrugated board, kraft paper, art paper, or specialty textured paper.

• Finishes: Matte/gloss lamination, gold/silver foil stamping, embossing, debossing, and spot UV coating as shown below.

Step 3. Conact us to get a quote. 

Pairs well with: Kraft Paper Gift Box | Magnetic Closure Rigid Gift Box

About Xiamen Usmile Printing-A trusted packaging partner in China.