【SIZE】 3/8" thread【PACKAGE INCLUDES】20pcs horizontal poultry nipples+40pcs rubber gaskets+20pcs wing nuts【LEAK-PROOF】The wing nut will securely fasten the chicken water nipple and prevent leaks. Stop the water immediately after drinking. Keep your chicken coop dry.【EASY TO INSTALL】Just drill a hole in the side of your container with a 9.5mm drill bit.【DIY CLEAN POULTRY WATERER】Turn your existing PVC pipe, bucket, etc. into a highly efficient chicken drinking fountain.【Who Can Use?】Automatic nipple that keeps all the water clean and sanitary, the perfect design that chicken learns fast, works for above two weeks chicks.