Lixit Recycles Beverage Bottle Kit 7/16 in Tube GB Kit M Quick release spring bottle holder. Stainless steel Ball-Point tube and mounting pedestal. All components can be sterelized. USDA approved non-toxic rubber stopper. Special locking mounting nut. Suggested for medium birds, conures, african greys,quakers, senegals, amazons,etc Does not include glass bottle Attaches to Cage Easy to Install