We have more than 12 years experience in making silicone storage bag , Our Eco Friendly + Keep Food Fresh = Save You Money-Can you imagine how much food and plastic bags we throw away each day? Now here is the solution ! Our silicone food bags are reusable, recyclable and airtight seal extends the life of your food. They are here to promote ZERO WASTE. Every one of us can help our earth by doing a little step! it contains no petroleum, no PVC, and no latex , our silicone food storage bag were Made of 100% pure platinum food-grade silicone- 4 bag 30 oz/1l/4 cups for snacks, fruits & veggies, sandwiches - an FDA approved and BPA free silicone that contains no fillers, coating, or any the poisonous Chemicals. Our bag is Heat & Cold resistant - when using preservation heating, ensure food is heated evenly, heat resistance up to 230°c, cold temperatures can reach -50°c. safely use in the dishwasher, freezer, microwave. Silicone food storage bag is Airtight seal and leak-proof. It can keep all your food and drink fresh and antioxidant. If you required any factory aduit , our factory can help to provided you Sedex 4 pillar &Nestle report .