♫【Leak-proof & Freezer Safe】: Upgraded ziplock closures provide an airtight leakproof seals in freshness. The freezer bags can lock out freezer while keeping food fresh and full of taste, perfect for freezing meat, chicken, fish, fruits, and vegetables. ♫【Multi-Purpose for Using】 Large (8.66x7.28inch / 22x18.5cm) and small(8.66x4.7inch / 22x12cm) size, together is the perfect container for storage snacks, lunch, liquid, juice, vegetables, fruit, food, etc. ♫【Easy to Clean & Durable】The bags are easy to clean. However to extended the lifetime of the bag, we kindly suggest you washing it by hand, since dishwasher will damage the zipper of the bags. It is easy to clean with the bottle brush and put the bags on the top of a mug or cup to air dry. PEVA material is anti-freeze, and the maximum temperature it can withstand is 80℃/ 176℉. This reusable bag can replace up to 500 single-use bags.