11 x 13 x 4" Expansion Poly Mailers
Strong polyethylene mailers protect products from moisture during shipping.
- Features a gusseted bottom to allow for thicker items such as binders, books and catalogs. 
 - Puncture, moisture, tamper and tear resistant.
 - High strength seams will keep contents intact even if over packed.
 - The outer surface of the mailer is white and the inner lining is silver.
 - Labels, ink and stamps adhere well.
 - Self-seal closure with a double perforation tear strip for easy opening.