Product details:

12" x 10" x 4" White Deluxe Literature Mailers (listed with inside dimensions) are strong and lightweight providing maximum protection for your most important literature and documents. S-16657 12 x 10 x 4 Deluxe Literature Mailers feature protective side flaps and front outside tuck closures. They also fold together quickly without the need for glue, staples or tape. white literature mailers are manufactured from 200 lbs.