Features 1. No-Spill: Won't drip, spill, or leak even when stored on their sides. Fits any jug with a standard 55mm opening, including 5-gallon jugs. Compatible with threaded screw-top jugs. 2. Upgraded Design: Unique design allows for easy installation and removal. Hanging ring for convenient handling. 3. Food-Grade Silicone: Provides an airtight seal and does not leach harmful chemicals, helping keep drinking water fresh and pure. 4. Multiple Uses: Ideal for use with water dispensers, water coolers, or jugs on the top rack. Center button remains attached to the cap. Suitable for home or office use with water pumps. 5. Easy to Install and Remove: Unlike plastic caps, this jug plug can be installed or removed in seconds. Simply press down to install and pry off to remove. Designed for effortless use. Specifications Material: Silicone Color: Blue Size: 5.5 x 5.5 x 2 cm Weight: 45 g (single), 95 g (package) Package Includes: 2 or 4 Water Bottle Caps