This is a silicone bottom cover (black) for water bottles. Thank you for viewing. 【Product Description】 Are you having these problems with your water bottle cover's bottom? "The bottom of my favorite water bottle cover tears easily." "I want to use a hand-me-down, but the bottom is tattered." "Replacing the cover is expensive." This silicone bottom cover solves those problems! ✳️ Simply attach it to prevent tearing and bottoming out! ✳️ Washable! Always clean and economical for repeated use. ✳️ Easy to install! 【Color, Material, and Size】 Color/Quantity: Black, 1 piece Material: Silicone Size: Approximately 9cm in diameter (compatible with 800ml to 1.5L water bottles) Height: 4.8cm Thickness: 2mm ✴️ Compatible with any brand, such as Thermos and Zojirushi, if the diameter fits! ✴️ If it comes off easily, you can reinforce it with commercially available double-sided tape. ※Caution※ ♦︎ Please be sure to check the size. ♦︎ After purchase, you cannot change to a different product or color. Please be careful not to make a mistake when purchasing. 【Shipping】 ⚫️ Free shipping. ⚫️ Will be shipped in a zippered bag. Simple packaging to keep the price down. ⚫️ Opened once for inspection. Gloves were worn during opening, and it was not touched with bare hands. 【Frequently Asked Questions】 ⚫️ Pets: None. ⚫️ Smokers: None. ⚫️ No need to comment before purchasing. ⚫️ No price reductions. ⚫️ Shipping method cannot be changed. Thank you for reading to the end. If you have any questions, please feel free to contact us. We will respond carefully to ensure a pleasant transaction. Thank you very much. Silicone cover to protect the bottom of your water bottle. Ideal for elementary school students and club activities, prevents fraying, bottoming out, and dents. Shock absorption prevents scratches & is eco-friendly, eliminating the need to replace expensive water bottle covers and making them last longer.