SILICONE STRETCH LIDS are a PRACTICAL addition to your kitchen to replace single use cling-wraps and foil. Made out of FOOD-GRADE, BPA-FREE, LFGB CERTIFIED and NON-TOXIC silicone, they’re safe for use in dishwashers, microwaves, your freezer and refrigerator, and applied directly to food. TEMPERATURE RESISTANT from -40°C > 220°C means they’re great for covering food before reheating or storing leftovers. A variety of sizes with 30% EXPANSION will allow you to always find a lid to fit.