Clean water: direct drinking for rabbit from nipple drinker, No spilling and soaking, like the original container style drinker, to make sure rabbit can get clean, fresh water, this can avoid some diseases.Good structure design with removable lower parts for easy cleaning. Each set of drinker have three parts (as picture)Easy to use: just connect it to the hose pipe (soft tube with inner diameter 5/16" (8mm)) under low water pressure and hook it to rabbit cage.