ColomPac "Crush-Zone" Corrugated Cardboard Multi-depth Mailer. Holds items up to ​11 x 8-1/2 x 2-3/8" (inside).

ColomPac "Crush-Zone" Corrugated Cardboard Mailer
with multi-depth scores, peel-and-seal closure, pull strip opener.

11 x 8-1/2 x 2-3/8" (L x W x H inside). 
12-3/4 x 8-3/4 x 2-1/2" (outside)

Made from sturdy E-flute corrugated cardboard, the book wrap mailer is a well-designed self-sealing mailing wrap specifically designed for e-commerce shipping. Design features include added product protection provided by a crush-zone, multi-scored sides, integrated retention flaps,  a convenient peel-and-seal closure, and a pull-strip for easy end-user opening.