This poultry nipple drinker is made of Copper material, which is nontoxic, reliable and can be used for a long time.[Saving Water]The inner spring can dispense water according to the rabbit's drinking needs to avoid wasting water.[Keep Water Clean]This water drinking nipple can prevent water leakage and prevent the drinking water from being polluted. Direct drinking for rabbit from nipple drinker.[Convenient to Use]This automatic rabbit drinker is easy to install the drinking water equipment on the cage, saving your time and effort.[Application Range]This water drinking nipple is designed for rabbit, convenient for rabbit to drink water.Usage:The nipple assembly screws right into your container, so additional tools will NOT be needed. Drill a hole a few inches up from the bottom of the container. Screw the threaded chicken nipple directly into the hole. Screw in the threaded chicken nipple so that when you are finished the nipple tray is in the 6 o'clock position. The chicken nipple will come to you already assembledcolour: copper-coloredMaterial: coppersize: about 29mm long, 9.5mm widePackage Contents: 20 * nipple drinker(not including tube). Important: Nipple Drinkers require a low-pressure water source. If connecting to household water lines, a pressure regulator must be used.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.