Custom corrugated ear-lock mailer
Start a made-to-spec mailer brief with the product arrangement, dimensions, quantity, artwork status, intended use, and destination.
Start a mailer brief →UPG's custom corrugated mailer boxes use an ear-lock structure for PR kits, influencer campaigns, subscription programs, ecommerce presentation, and branded product launches. Exterior printing, interior printing, custom inserts, and specialty finishes are available.
Product facts reviewed 2026-09-02. Final written project terms control pricing and production.

Sizes and specifications reviewed per project
Production and delivery planning
Incomplete briefs are welcome
Custom printed corrugated ear-lock mailer boxes for branded unboxing, product presentation, and repeat programs.
Custom sizes with a 250-unit planning MOQ; final dimensions remain subject to structural feasibility review.
Corrugated construction with print and insert options planned around the product and presentation goal.
Exterior-only printing or exterior and interior printing for a branded unboxing experience.
Matte, gloss, foil, spot UV, and custom inserts are available for the approved structure.
Representative concepts. Final construction, color, print, and finish are confirmed for each project.



Structure guides, applications, comparisons, and artwork notes stay available without blocking the quote path.
Final artwork is prepared on the approved mailer dieline. Insert artwork is coordinated with the planned product arrangement.
UPG supplies ear-lock mailer boxes, not regular slotted shipping cartons, master cartons, or RSC cases.
UPG manufactures custom corrugated ear-lock mailer boxes for branded presentation. Start with the program type, then confirm the product arrangement, insert, print, quantity, and destination.
Start a made-to-spec mailer brief with the product arrangement, dimensions, quantity, artwork status, intended use, and destination.
Start a mailer brief →Use an application guide when the ear-lock mailer is for press, media, creator seeding, product launch, or branded presentation.
Review custom PR boxes →Use the subscription route when products or assortments repeat and the mailer, insert, and artwork need a consistent program brief.
Review subscription mailers →These standard transit cartons are outside UPG's current offer. The available corrugated product is a custom ear-lock mailer for branded presentation.
Quick answers cover minimum quantities, product fit, and the information needed for a quote.
Start with the product family, quantity, and your contact details. Technical specifications can follow after the first review.