Little Giant Poultry Nipple (4-Pack) Gravity Fed Water Nipples for Automatic Bird Chicken Watering (Item No. 172035) Transforms a standard bucket or PVC pipe into a poultry watering device.This are lawn-and-garden-sprayer-accessories.This is manufactured in United States.This are easy to use. Features SANITARY SOLUTION - These water nipples keep water clean and can help prevent disease. VERSATILE USE - These poultry nipples transform a standard bucket or PVC pipe into a poultry watering device. EASY TO INSTALL - The nipples are easy to install and are intended to be vertically mounted. 4 BIRDS EACH - These watering nipples each accommodate for up to 4 birds. GRAVITY FED - The nipple uses gravity to create a steady drip that allows for automatic poultry watering. USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.