[Food Grade Materials] reusable food bags are made of food grade PEVE material, PBA free, PVC-free, lead-free, chlorine-free, easy to clean. We provide 18 pack in 3 different sizes: 4 Reusable Gallon Bags, 6 Reusable Sandwich Bags, 8 Reusable Snack Bags, which will meet all your needs. [Large Size & Easy To Clean] Gallon bags are 11 x 10.6 inches, sandwich bags are 8.6 x 7.3 inches, and snack bags are 8.6 x 4.7 inches. In addition, it comes with 2 small brushes and a drying rack, which help easy clean these bags and let them air dry. Thick reusable storage bags can save more than reusable plastic bags, which are more durable and safe. [Reusable Freezer Bags] These reusable storage bags are resistant to high and low temperatures -22~120(-30+60), you can put it in the refrigerator, but please do not put it in the microwave or oven. We recommend hand washing, the dishwasher may not be clean enough. [Leakproof & Easy Seal] Reusable food storage bags have upgraded double closures, which is very suitable for marinated meat, leftover, vegetables, snacks, fruits, grains, and also for liquids such as soups or sauces. Widened seal side and non-slip design allow your kids to easily open and close their snack bags. [Less Plastic Save Our Planet] A good environment helps us survive, and 1 reusable silicone bags can replace up to 400 disposable plastic bags. Let's take action and reduce plastic is no longer just a slogan, choose reusable storage bags, minimize your impact on the planet. One small act from you could save the world. We offer a 12-month warranty. If you have any questions about these bags, please email us for an ideal solution.