100% Food Grade Silicone 100% PURE FOOD GRADE SILICONE: All the reusable silicone bags are completely free of BPA, lead, PVC, latex and phthalates, perfect and healthy for storage food or anything you like, better than tranditional harmful plastic ones. SANDWICH SIZE: This package included 1 medium sandwich silicone bag, size is 9" x 6.5" x 1.5" (20oz), this choose is convenient for be carried in your bag, and suitable for storage your food, such as sandwich,snack,salad, etc or other small stuffs you would like to put in it. PORTABLE AND EASY TO CLEAN: Thick silicone material but light weight, strong and crash resistance with pinch-lock design, so it is very convenient to carry food(even liquid) or others when going to outside for travel, picnic, etc. All the silicone bags are safe for dishwash, but we recommend hand wash for longer use life. HEAT AND FREEZER SAFE: Benefited from high quality silicone material, these ziplock bags can resistant temperature form -40 to 392 (-40-200) easily, safe for both macrowave and freezer. When not in use, just clean and dry it, very convenient to care and storage. REUSABLE AND PLASTIC FREE: Endlessly reusable, one silicone bags can replace 1000+ disposable bags, a healthy alternative to plastic storage, let's save earth, save our planet