Thank you for viewing! Size: 9cm in 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 broken water bottle cover or pouch to prevent the bottom of the water bottle from falling out and to prevent injuries to children. Also, since it is made of silicone rubber, it is easy to care for, just wipe it lightly after washing with water. [More Economical Than Replacing] Have you ever thought that it might be better to 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, so the water bottle cover will 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.