Kaytee Chew-Proof Water Bottle. Superior chew resistant water bottle. Glass and stainless steel design. Spring attachment hanger holds bottle securely in place inside or outside any small animal wire home. Features unique double-ball bearing drip resistant sipper tube. Stainless steel cap and floating duck reminder included. Spring attachment hanger and floating duck Made with durable chew proof glass Clear glass allows easy view of water level Available in 6 ounce or 26 ounce For hamsters, gerbils and pet rats.