Ensure your child's insulated cup remains leak-proof with our silicone gasket rings. These universal replacement parts are designed to fit a variety of cup lids, providing a tight seal that prevents spills. Made from food-grade silicone, they are safe for use with beverages and easy to clean. To install, simply remove the old gasket and replace it with a new one, ensuring a for optimal performance. Features -Color:Grey -Material:Silicone -Size:5.20X5.20X0.20cm/2.04X2.04X0.08in -Size:4.00X4.00X0.20cm/1.57X1.57X0.08in -Easy gasket replacement: simply remove the old gasket and replace it with one of these silicone sealing rings to instantly upgrade your bottle -Leakproof performance: the sealing ring prevents leaks, ensuring that your insulated container maintains its temperature and keeps your beverages secure -Enhanced temperature retention: these gaskets provide an airtight seal that helps retain the temperature and freshness of your food for longer periods -Universal fitment: suitable for most insulated bottle lids, making it a versatile accessory for various types of containers -Renew your bottle lid: seal the lid to the cup, creating a leakproof seam that makes your lid look and function Package list: 50 x sealing ring