Keep the cup hygienic and clean: the silicone drinking glass lid sticks to the rim of the cup, is dust-proof and sealed, keeps flies away, keeps your drinking cups and coffee cups hygienic and clean. Stop spilling liquids even when the cup is tilted. Good seal : You can gently press into the middle and the lid creates airtight, waterproof and leak-proof seal, airtight and leak-proof, keeping your coffee or tea hot. High Quality: The silicone cup lids are made of high quality food grade silicone, non-toxic, no special smell, can be reused, not deformed, safe and durable. Easy to wash: The silicone cup lid is reusable and the soft material is easy to clean, and can be cleaned in the dishwasher or hand washed. Diameter: 11 cm/4.33 inches, height: 3 cm/1.18 inches, suitable for cups with a diameter of 9.5 cm/3.74 inches. The silicone glass cover prevents dust, airtight and leak-proof, keeps your coffee or tea hot. Material: Silicone, Product diameter: 11cm Type B: a set of 6 colors (purple, blue, red, green, orange and yellow), Type A: A set of 8 colors (white, yellow, orange, red and purple, light blue, blue and green).