Description: SIZE & CAPACITY: The bird feeder is 7.3cm/2.87inch in diameter and 15cm/5.91inch in height. 490ml/16.6fl oz large capacity, even if you are away from home around all day, you don't have to worry about your pets not having enough water to drink. HIGH QUALITY MATERIAL: This bird waterer is made of high quality PP plastic material, no bad smell, durable. Provide your pet with a more comfortable and hygienic drinking experience. AUTOMATIC WATER DISPENSER: This automatic water dispenser for pet birds features a gravity flow that controls the amount of water and prevents spills. The sealed design prevents dust from entering. EASY TO USE AND INSTALL: Just turn the bottle upside down and fill it with water, put the lid on, then quickly turn it over and it's easy to hang on the cage. WIDELY USED: This bird water feeder is suitable for budgerigars, cockatiels, peonies, parakeets, conures, lovebirds and other small and medium sized birds. Specification: Material: PP Size Chart: 15cmx7.3cm/5.91inchx2.87inch Package Includes: 1 Bird Water Feeder Note: Please allow slightly errors due to manual measurement and different monitors.