Product Details: Our silicone boots are 2.85 inches in diameter and 1.7 inches high. Suitable for tumblers or water bottles with a base diameter of 2.8-2.95 inches. If you are not sure whether it is suitable, please measure the diameter of the bottom of your bottle before purchasing. Bling-bling: Compared to ordinary boots, glitter boots not only protect your water bottle from noise, dents, and damage, but they also make your water bottle appear shiny, creating a sparkling look for your favorite water bottle! Durable Quality: This water bottle boot is made of high-quality silicone, which is more flexible and won't deform. BPA-free and safe for children. Easy to use, easy to clean and reusable. Satisfaction Guarantee: After you receive the product, its surface may have sporadic sequins fall off, is a normal phenomenon. If there are any quality problems we will try our best to give you a satisfactory solution.