🐥 WATER STAYS CLEAN! Light cannot pass through waterer which prohibits algae growth. No backflow from neither the drinking cup or nipple into the waterer, unlike other systems. 🐓 DRINKING CUP AUTOMATICALLY REFILLS ON ITS OWN! No need to push any tabs. The drinking cup automatically replenishes itself with clean water and always remains half-full. 🐥 EASY! EASY! EASY! Waterer is easy to fill. Just pop off the easy-to-remove lid and fill! 🐓 INCLUDES One 1 or 2 Gal BPA-free food-grade plastic chick waterer with 2 pre-drilled holes, handle, 1 anti-roost lid, 2 red horizontal nipples, 2 plastic cups, instructions and the world’s best customer service in case you have any additional questions! 🐥 BEST CUSTOMER SERVICE! Here for any additional help you may need!