RetailSource B080602WM25 Corrugated Mailers, 8" x 6" x 2" (Pack of 25) Corrugated mailers are manufactured from 200#/ect-32-b corrugated Crush resistant mailer folds to provide double walls of protection on front and sides Unique wave-rule edge virtually eliminates paper cuts These one piece mailers fold together in seconds. No tape, Glue or staples needed 25 boxes