The Living World Secure Water Bottle's unique design makes it extremely quiet and easy to attach to almost any type of enclosure. The spout has a spring-loaded ball and O-ring that prevent leakage. Made of durable plastic, the bottle's closed system helps keep contaminants out and is easy to clean. The water bottle should be refilled daily with fresh water. Periodic cleaning with tepid, soapy water is recommended, just rinse thoroughly before refilling with fresh water.