Set of 4 silicone REUSABLE STORAGE & COOKING BAGS perfect for Sous Vide style cooking or food storage. Measurements marks are conveniently molded into bags and each holds approximately 30 ounces. Besides cooking, use thes to store produce, baby food portions, sauces, meal prep, snacks, fruits, veggies, sandwiches and more. Our SOUS VIDE BAGS are made of SAFE FDA CERTIFIED FOOD GRADE SILICONE which contains NO BPA, NO BPS, NO BPF, NO PVC, NO Phthalates, NO Petroleum, is Plastic Free & Latex Free. Non-toxic bags contain NO COLOR DYES; unlike others, we only use CLEAR silicone with NO DYES. AIRTIGHT SILICONE FOOD STORAGE BAGS with hermetic seal allow you to preserve food, ready to refrigerate or freeze, marinate before cooking, microwave or boil, reheat, even eat out of & finally, save your leftovers for lunch at work. Hermetically sealed closure is leak resistant and zip-lock closure will preserve & extend the freshness of your food for healthy nutrition, money saving & less food waste. Each premium silicone sous vide bag measures 7" W x 7.75" H x 0.5" D (holds approx 15 ounces). Fox Run reusable silicone bags are dishwasher safe, heat and cold resistant, temperature safe from -58?~+482? (-50??+250?). Safely re-use in boiling water, microwave oven, steamer, refrigerator, freezer, etc.