Include:220*197mm*4pcs+220*135mm*4pcs Environmental Protection Materials-These silicone food storage bags are made of food grade silicon, none of the toxic chemicals. Eco-friendly, anti-allergic, recyclable, have a long service life. Easy to use for kitchen refrigerator microwave. Airtight & Fresh-Designed with airtight seal, leak-proof vacuum and zippered container, ideal for food and liquid storage, portable and save space. Temperature Resistant Range-Heat and cold resistant, temperature range: -58 482 (-50 + 250 ). Suitable for microwave, fridge and freezer. Dishwasher safe. Reusable Alternative - Long life, safe silicone material, eco-friendly, non-allergenic, non-toxic and safe alternative to replacing thousands of plastic bags. Versatile Home & Kitchen Use- Four different color silicone pouches are provided. Widely used in freezing, rest, kitchen, travel with our reusable food bags, it can make our life convenient, healthy, simple and economical.