【FOOD GRADE MATERIAL】 Choose SPLF brand for TRULY food-grade reusable storage bags. Made of food-grade PEVA material that is PVC, BPA, Chloride and Lead free. Healthy and safe for family and earth.【LEAKPROOF & EASY SEAL】 Upgraded double closures ensure an airtight leakproof seal, perfect for storing and preserving food. With widened sidebar and non-slip double lock zipper design, you can easily open and close the snack bags.【FREEZER SAFE & DISHWASHER SAFE】 The freezer bags can lock out freezer burn while keeping food fresh and full of taste, perfect for freezing meat, chicken, fish, fruits and vegetable. Upgraded PEVA material that is dishwasher safe. however, please skip high-temperature functions such as the dishwasher's drying to extend the lifespan of the bag. We suggest alternating hand wash and air dry to clean for long-term usage. Not microwave friendly.【LARGE & DURABLE】 Lunch bag size is 8.5"x7.75" larger than others (8.5"x7.25"), snack bag size is 8.5"x5.25" also larger than others (8.5"x4.75"). Perfect roomy space to hold more stuff. One extra thick reusable bag can save more than 300+ disposable baggies, perfect solution for plastic bags waste reduction and eco-friendly.【MULTI-PURPOSE & 100% SATISFACTION】 Perfect containers for food storage (lunch snack sandwich etc), home organize (cosmetics, jewelry, stationery etc), travel (make-up, travel toiletries, soap, creams etc), outdoor picnics. If you are not 100% satisfied with your reusable storage bags, feel free to contact us for solutions.