SAFETY & RELIABILITY:These silicone lids are made of food-safe silicone, very hard-wearing, non-toxic and absolutely safe for adults and children.Wear-resistant silicone guarantee durability and excellent feel. Detachable design makes it reusable and flexible. 6 COLORS & LOVELY: The lid and handle are available in 6 colors and can be matched to your liking.Make your life full of color, have a good mood every day. REASONABLE SIZE: The 4.13 inch diameter can be used for any cup less than 3.74 inches in diameter. Temperatures range from -40F(-40 ) to 446F(230), no need to worry about the temperature of the water, use it with confidence. ATTENTIVE DESIGN: Excellent workmanship guarantees good sealing. prevent from dust, airtight and leak proof, keep your coffee or tea hot and clean.It can completely isolate air, dust and insects. Removable design, installation is very simple, storage does not take up space. No spills: These silicone cup lids are leak proof, so you don't have to worry about spills and drops. With an anti-slip design to ensure you stay in place until you remove them.