Silicone Stretch Lids 6 Pack Suction Lid - Multi Size Stretchable Covers For Bowls, Cups, Pots, Can, Mason Jar, Food Fresh Saver Cover, Freezable Microwavable Cover White

• The main ingredient is silica gel, a natural ingredient found in sand, stone, crystal. It's not rubber rubber, it's not plastic plastic!Silicone is a stone on the beach, low carbon environmental protection. • Silicone has a high strength of softness, corrosion resistance, temperature, suitable for cooking, baking, is directly in contact with food raw materials, and simple and practical.