Food Grade Eco-Silicone Food Bags -- Made of food-grade PEVA material, reusable sandwich bags are PVC-free, lead-free, chloride-free and BPA FRE, an eco-friendly and recyclable material. They are not harmful to the environment. Also,you dont need worry about your heath with these food bags. Reusable Silicone Food Storage Bags -- With the food bags, you wouldnt use amount of plastic bogs in your house, which are harmful for you and your family. These reusable freezer bags are heat and cold resistant, temperature resistant-22~120(-30+60). Easy to Clean -- Please do not use in the dishwasher. We recommend HAND WASH, for the dishwasher will damage the zipper of the food storage bags. Clean with the bottle brush and put the bags on the top of a mug or cup to air dry, or put to our developed a rack for the silicone food bags. Leakproof & Convenience -- The reusable freezer bags featured with double zipper closures locks are leak proof, easier to open and close, the airtight seal zipper avoid spilling liquid objects and prevent the odor of different foods from mixing, you can store the soup or juice, sort and pack the lunch, so the reusable lunch bags is convenient to take food to work, school, travel, picnic. Multi-Purpose -- These reusable storage bags are used for more applications. The reusable storage bags not only food bags for meats, meal, vegetables, frozen foods, fruit, but also big enough to accommodate clothes, toys, etc on a wonderful journey. These plastic bags also perfect to storage knitting materials, office supplies Jewelry, cosmetics, etc.