[100% Food Grade Silicone Material]:Our water bottle caps are made of food grade silicone,not easily deform,clean and reusable. [Upgraded Splash-Proof Lid System]: No splash and no leakage, stronger sealing than general caps, clean and safe, creating a sterile environment for clear water storage. [Water Jug Caps Replacement]: Jug Caps suitable for standard 55 mm 3 or 5 gallon water bottles. [Reusable Water Bottle Caps]: Say no to disposable water caps.water bottle cap can be reused thousands of times, convenience and save money. [Multiple Occasions]: Suitable for water dispensers and water coolers, where the Inner lid stays fixed on the lid after placement, rather than floating in the water; also for top rack or water pumps in homes and offices. 5 Gallon Water Jug Cap Silicone Spill Resistant Reusable