Made from PE (Polyethylene),BPA free,no toxic,safe to use. Can be reusable,refrigerated and heat resistant (under 110℃/230℉). Pack of 18 pieces food bags in three sizes,Large*5(24.5cm/9.7"×14.5cm/5.7"),Medium*6(19.5cm/7.7"×12cm/4.7"),Small bags*7(15cm/5.9"×10cm/3.9"). Zipper airtight designed,leak proof,great for food classification saver, and storage like snacks,candies,fruits,crackers,cookies,sandwich seasoning and...