This silicone boot is a perfect fit for water bottles with a diameter of 2.67-3.07 inches. Made of flexible and soft food-grade silicone, it protects your cup from collision, scuffs, scratches, and noise. It is reusable, durable, and safe for all ages. Choose from various colors to match your style and make your bottle more fashionable. Easy to install and clean by hand washing. Features 1. Better Protection: Silicone water bottle protective sleeve can protect your cup from collision, scuffs, scratches. Give your water bottle a longer life, and will not make a noise when placing it on the table, no embarrassed by the bottle's nosiy clanking on counters or tables. 2. Premium Material: This bottom boot is made of food-grade silicone, soft, flexible, BPA-free, odor-free, reusable, durable and safe. Safe for all ages. 3. Perfect Fit: The silicone protective sleeve is specially suitable for diameter in 2.67-3.07 inch water bottles. You can easily put it on and off the bottle sleeves. proper size and lightweight is easy for you to carry and store. 4. Before installation, clean the bottom of the tumbler, then put the silicone boot on it slowly and squeeze out the air. It is reusable and easy to clean by hand washing. 5. Ideal Decoration: Our bottom sleeve for the water bottle will be the perfect accessory for your daily activities. You can choose a suitable color to match your water bottles and make your bottle more fashionable. Specification Material: Silicone Color: Multicolor Size: 4.5 x 7.5 cm Weight: 38 g Package Include: 1x Silicone Water Bottle Bottom Sleeve