15x20+4"Bg 2.5ml Poly Mailer Expandable 300/cs

Made from a 2.5 mil coextruded blend of ;ow-density polyethylene. These have a white exterior and silver interior to provide complete opacity. Designed for the secure shipment of items. All bags are water resistant and feature a lip with permanent adhesive and a side weld construction. Available with or without a perforation below the lip.