The Kaytee Flat Bac Water Bottle is perfect for keeping your hamster hydrated. This water bottle features a stainless steel spring-loaded dripless sipper that is easy to refill with water from a sink or hose. The bottle also has a snap-lock bottle bracket with an E-Z twist attachment knob that makes it easy to remove and refill the bottle. The bottle is made of durable clear plastic with a floating duck inserted as a friendly refill reminder.