Brass Nipples Gravity Feed Watering Starter KitWill work for Rabbits, rats, chinchillas, Ferrets, and more.Nipples are solid brass and come apart easily to clean or to fix. Kit Includes10 - Brass nipples Model SE610 - 3/16” plastic tees10 - stainless cage clips 1 - bucket connector with a brass barb50’ of 3/16” food grade tubingThis starter kit will give you everything you need to start a gravity feed watering system except the bucket. for more information on how a gravity fed system works please do your own research. Youtube in a great way to get information to help you understand more.