BAFX Products - Poultry Chicken nipple - Waterer - Drinker nipple for chickens - water fowl - ducks - just hatching to full grown No more cleaning messy waterers! Save time and headaches! These screw in style watering nipples are great for building your own sanitary waterers! Use buckets, bottles or any other plastic water container to create a hassle free watering system! Recommended 1 nipple for every 3 birds Install will require: Drill; 5/16 or 11/32" drill bit; 15mm nut driver attachement for drill;Thread tape; Silicone sealer (optional) 1 Year BAFX Products Warranty against manufacturing defects!*