Tazzzu Oasis Poultry Water Nipples, 10 Pack A 10 pack of commercial grade poultry drinking nipples, THREADED STYLE mounting (10mm x 1.0mm thread size) 10mm THREADING BOLT included - pre thread your hole for easy, leak free installtion. Instructions included! 10 nipples will keep a flock of up to 40 chickens or 30 turkeys well hydrated Build your own poultry watering system with ordinary hardware store parts - instructions included Fill you system from outside the coop - no more stepping in you know what first thing in the morning!!