32 oz plastic e-z fill cage waterer. Patented no drip valve. Heavy duty quick-lock bracket allows for easy height adjustment. Drinking valve tip should be at animals shoulder height. To fill bottle, flip up hinged top and fill with pitcher or water hose if bottle is outside. Install bottle in the bracket on cage before filling with water. Bottle has ridges for height adjustment. Valve is no drip, spring activated, gravity feed, stainless steel.