DISHWASHER SAFE & EASY TO CLEAN: These reusable freezer bags are suitable for dishwasher. While put the reusable lunch bags on the top rack of the dishwasher, this upgraded food-grade PEVA material is dishwasher safe under 120℃/250℉. We recommend hand wash and air dry too. Not suitable for microwave. LEAK-PROOF & EASY TO SEAL: The reusable freezer bags have a double closures design that is waterproof, leak-proof, air-tight and well sealed, great for storing food and Keeping your lunch well-preserved. Newly anti-slip lock design, everyone can easily open and close the reusable snack bags. FOOD GRADE MATERIAL & FREEZER SAFE: Our reusable gallon freezer bags are made of food-grade PEVA material, BPA free. Dark sauces may cause staining of these reusable bags due to food-grade material, but it does not affect daily use. The food storage bags can also prevent food from freezer burn while keeping food fresh and tasty for longer. REUSABLE & RECYCLABLE: These reusable storage bags were designed with the environment in mind. Extra thick, resistant PEVA material makes it more reliable, they can be reused hundreds of times. One reusable bag can replace 300+ disposable plastic bags. Better for the Planet and save your money. LARGE-CAPACITY & MULTI-PURPOSE USE: This set includes 6 reusable gallon bags (11" x 11") in a large-capacity design — ideal for marinating meat, storing frozen foods, and organizing household or office essentials.