Product material: environmental and non-toxic to human health kraft paper + PE; Package: 50Pcs in a pack. Size: 12*20cm+4 Protect food fresh and safe: The wax-proof inner surface, the transparent and odorless matte window, resealable. Moisture barrier material protects items from moisture, gases and odors and keeps the inside fresh. Self-sealing and standing design: The zipper of the bag is resealable. U-shaped notch on the top of the bag, tear easily after heat sealing. Strong kraft paper material, thickened bottom, for home store or more stable in the display window. Wide range of applications: Kraft zipper paper bags are perfect for storing well-dried food, Wedding Treat Food, tea, coffee pods, salts, sweets, snacks, sweets, nuts, seeds, beans, sugar, craft food, dehydrated herbs。