This set of 6 stretch lids are made from non-toxic food grade silicone, flexible and soft, stretchable to match with bowls in any shape. Their good sealing helps keep food fresh longer and prevent spill.Features:Made of food grade silicone, non-toxic and safe to use. Flexible and soft, stretchable to match with bowls in any shape.Washable and reusable, tear resistant .Withstand high and low temperature, can be used in refrigerators, microwave ovens, and toastersGood sealing helps keep food fresh longer and prevent spill.6 pcs per set, fit for containers with different sizes.Perfect for storing leftovers, plates, unfinished drinks or any remaining fruits and vegetables.Specifications:Temperature : -40F to +446F (-40° to +230°)Material: siliconeDiameter: 65mm(2.6"), 95mm(3.7"), 115mm(4.5"), 145mm(5.7"), 165cmm(6.5"), 210mm(8.3")Color: blue, yellow, pink, transparent(optional)Package weight: 160g / 5.64ozPackage size: 220 * 220 * 60mm / 8.66 * 8.66 * 2.36inClean the lid for the first use, and keep it dry after each use.2. Clean the lid with soap and hot water or by putting it in the dishwasher. Avoid using abradant materials or strong foam cleaners.3. The lid can be used in a microwave oven or an oven, but not suitable for direct heating on the gas or electric heaters.4. After cooling in the microwave oven or oven, cover the lid to extend its service life.