Features: 1. Compatibility: The protective silicone boot is specially designed for 40oz glass with a handle, Quencher H2.0, and 20oz, 30oz tumblers. It helps extend the service life of your tumbler. 2. Reduce Noise: Minimize clinking sounds in quiet environments. The silicone protective sleeve helps reduce noise when using your tumbler. 3. Enhanced Protection: This bottom silicone sleeve provides protection against dents, scratches, and slips. It also helps reduce noise and prolongs the life of your tumbler. 4. High-Quality Material: Made from soft and flexible silicone, the protective boot is BPA-free, odor-free, reusable, durable, and safe for daily use. 5. Secure Fit: The water bottle bottom sleeve is precisely shaped to fit the base of the tumbler, ensuring a snug fit that resists slipping off. Specification: Material: Silicone Product Color: Multicolor Product Size: 7.5 x 4.5 cm Product Weight: 35 g Package Included: 1 x Silicone Protector Boot