The water nozzle is an 8 mm hose inlet joint, made of high quality brass, which does not rust and is resistant to biting. Mellow and smooth surface, not scratch your pet's mouth. This water drinking tool can prevent water leakage and prevent the drinking water from being polluted.Direct drinking from the drinker, make sure rabbit can get clean water to avoid some diseases. Come with a little spring which can fix nipples on wire mesh. Easy to install the drinking water equipment on the cage, saving your time and effort. The drinking equipment is designed for rabbit, ferrets, rat in the cage, convenient for rabbit to drink water. Can be used with a variety of wire cages. We greatly value our customers and want you to be completely satisfied with your purchase. If you aren't happy with your shopping experience or product, we urge you to contact us so we can resolve the issue