Double-lock zipper design, easy to open and close to avoid liquid spillage. Unlike plastic storage bags, our snack bags can be washed and reused again and again. Hand wash and air dry for longer life. FOOD GRADE MATERIAL: The gallon storage bags are made from food grade PEVA material and passed certified test to ensure these reusable freezer bags safe for family use, PVC-free, lead-free, chloride-free and BPA free, no silicone or plastic smell. REUSABLE & LEAK-PROOF: Our reusable gallon freezer bags are reusable and leak-proof, featuring with double zipper, easy to open and close, avoid spilling liquid and prevent the odor of different foods from mixing, safe for soup and juice DURABLE & ECO-FRIENDLY: Each pack has 6 gallon bags, the maximum temperature cam withstand is 80°C/176°F. These reusable snack bags are washable, please do not wash these bags with dishwasher, we recommend hand wash and and air dry MULTI-PURPOSE: Not only can these meat freezer bags store food, fruit, sandwich, nuts snack, but also can organize clothes, toys, make up tools, office supplies, jewelry. Reusable gallon bags freezer are also portable for indoor and outdoor use AFTER-SALES SERVICE: Please contact us if you have any problems about reusable leakproof gallon bags, we will help you to solve the problem as soon as possible