Kuke Set of 4 Silicone Bowl Lids Reusable Suction Seal Covers for Bowls Pots Cups Food Safe (4 Colors) DURABLE MATERIAL: High quality food grade silicone material.Heat-resistant from -40 Centigrade to 230 Centigrade MULTIPLE USE: Fit for a wide variety of sizes ,shapes,and materials including : stainless steel,glass,plastic,ceramic,and even wood. UNIGUE DESIGN: Unique designs cover a range of container: pots,pans,casserole dishes,and various kinds of bowls, four colors to meet your needs PACKAGE CONTENT: 4 pack of Kuke silicone lids, a must in kitchen, bringing you wonderful time in kitchen WARRANTY: We, Kuke, years-brand silicone products supplier, provide customers with life-long technical advisory, any questions about our products; we are here ready for help