SAFE MATERIAL-These bags are made from PE, BPA free, no toxic, durable and reusable. BPA-free helps preserve food for longer, which could be washable and refrigerated. ZIPPER AIRTIGHT DESIGN – Fashion mason jar shaped design to be your perfect traveling and camping companion, which is ideal for protect the freshness for a variety of snacks, fruits, veggies, crackers, cookies and sandwich etc. leak-proof zipper design, suit for taking on the go and transport. WIDE APPLICATION – Mason jar storage bags suit for keeping nuts, candy or tea when you go towork, school, traveling or camping outside.Even though for keeping cookies ,sandwich,biscuits and seasoning. it is portable and durable. EASY TO CLEAN: These airtight freezer bags are easy to clean, Just a rinse with warm soapy water and prop on a cup to dry! Tips: Give the bags a good wash before you use, can not be used in microwave, oven and dishwasher. PACKAGE CONTENT:1/5PCS Storage Bags;Size:S:15.7*10.7cm L:19.5*13.7cm XL:24.5*17.2cm.