Made of food-grade PEVA material that is PVC, BPA, Chloride and Lead free. Healthy and safe for family and earth. Upgraded double closures ensure an airtight leakproof seal, perfect for storing and preserving food. With widened sidebar and non-slip double lock zipper design, children can easily open and close the snack bags. The freezer bags can lock out freezer burn while keeping food fresh and full of taste, perfect for freezing meat, chicken, fish, fruits and vegetables. Easily hand wash in cold or room temperature water and air dry to clean. Not microwave or dishwasher friendly. Snack bag size is 28x27cm. 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. Perfect containers for food storage (lunch snack sandwich etc), home organization (cosmetics, jewelry, stationery etc), travel (make-up, travel toiletries, soap, creams etc), outdoor picnics.