Thank you for viewing! Size: 9cm diameter Color: Black Compatibility: Can be used with any brand as long as the size fits [Product Basic Specifications] Simply attach it to the bottom of a damaged water bottle cover or pouch to prevent the bottom from falling out and protect children from injury. Also, since it's made of silicone rubber, it's easy to clean – just wipe it after washing. [More Economical Than Replacing] Have you ever thought that it might be better to just replace the entire water bottle cover or pouch when it's damaged? Genuine water bottle covers from each manufacturer are expensive, so this product allows you to use your water bottle economically for a long time. [Durable and Long-Lasting] Silicone is highly durable, making your water bottle cover last longer. It can also withstand impacts, protecting the water bottle itself and preventing scratches and dents. It allows you to make your familiar water bottle last longer.