Leak-proof Silicone Travel Mug With Insulated Lid & Food-safe Seal Gasket. Transform Your Kitchen Storage with Our Versatile Food Grade Sealing Ring. Crafted from Premium Silicone, This Essential Accessory Ensures Your Ingredients Remain Fresh by Providing a Strong Barrier Against Water, Dust, and Air. Its Heat-resistant Design is Perfect for High-temperature Conditions, While Its Flexible Construction Easily Fits a Range of Container Sizes, Offering Both Adaptability and Reliability. Key Features: - Made from High-quality Food-grade Silicone - 2mm Thickness for Superior Sealing - Protects Against Water, Dust, and Air - Compatible with Various Container Sizes - Heat-resistant for Versatile Use Package Includes: - 1x Sealing Ring (Note: Custom Sizes Available. Product Color May Vary Based on Display Settings.).