Food Grade Material: These cup lids are made of good quality silicone material, with smooth surface, good sturdiness, flexibility and durability and dishwasher safe, perfect to keep dust and dirt from your cups and mugs. Package: You will receive 3 pieces of mug cup covers, each measures about 3.74/ 9.5 cm in diameter, which fits most cups, including 3 colors, red, black and light gray, suitable to use at home, office, parties and so on. Knot Handle Design on the Cup Lid: The handle on the lid is with knot shaped design, which is for easy to hold, so that you can use the cup cover more conveniently, put it on the cup or take it off more easily. Keep Airtight: The suction of silicone material makes the cup lid seal most cups with smooth edges, less liquid leakage, and perfect for maintaining drinks temperature for a while. Wide Application: These cup covers are suitable to be used for covering glass, plastic cups, ceramic mugs, to keep your drinks clean and fresh, such as coffee, hot tea, iced tea, orange juice, milk and more.