Joyangy 2 Pcs 3 Inch/75mm White Water Bottle Boot, Silicone Sleeve Bumper Bottom Protector for 20oz 30oz 40oz Tumbler Cup, Universal Non-Slip Base Cover Accessories for Most Water Bottles

["【2 Pack Water Bottle Boot Set】Get 2 white silicone sleeve bumpers measuring 3 inch/75mm diameter. Compatible with 20oz 30oz 40oz tumbler cups and water bottles with 2.87-2.99 inch bottom width. Universal fit for most drinkware brands.","【Durable Silicone Bottom Protector】Made from premium food-grade silicone material for safe daily use. The elastic water bottle boot sleeve wraps snugly around tumbler base, providing long-lasting bottom protection without fading or tearing.","【Non-Slip Base Cover Design】Silicone bumper creates anti-slip grip on smooth surfaces. This tumbler bottom protector prevents sliding in cup holders, on desks, and countertops, keeping your water bottle stable and secure.","【Tumbler Accessories Protection】Water bottle boot guards against scratches, dents, and impact damage. The silicone sleeve cover reduces noise when placing bottles down and protects both your tumbler bottom and furniture surfaces.","【Vented Base for Easy Install】Air vent design allows bubble-free application on water bottle bottoms. This tumbler cup accessory fits 20oz-40oz bottles perfectly. Ideal silicone boot for outdoor, office, gym, and travel use."]