["Fits Perfectly: Our protective silicone boot is designed to fit Yeti Rambler Jr 12 oz and 18 oz Rambler bottle. Inside diameter is 2.95 inches it leaves no gaps and wont slip off easily. For other brands please measure the bottom of your water bottle before purchasing." Strengthen Protection: Accidental drops of water bottles happen all the time this silicone sleeve is thickened to 2mm to effectively prevent scratches scuffs dents and other damages. It is a great water bottle accessories. Noise Reduction: The silicone boot reduces the noise when placing your Yeti Rambler bottle down on table and avoids the ‘clanging’ sound of metal bottom colliding. Colour Match: After countless adjustment tests the color of our silicone boot is very close to the Rambler Bottle you can get a protective sleeve with almost the same color as the bottle. Premium Material: This silicone boot compatible with Yeti kids water bottle is made of high-quality BPA-free silicone. Safe for children. Dishwasher safe easy to clean and reusable.]