100% Brand New and High Quality. Gravity principle, automatic supply, save trouble. Easy to refill, easy to clean. Standard cap size can connect bottle which you can find easily on the market, like Cola, or other carbonic acid beverage bottle etc. W*L:1.65 (inch)* 4.13 (inch)

Standard cap size can connect bottle which you can find easily on the market, like Cola bottle,or other carbonic acid beverage bottle,etc.. Anti-overdose,always keeps your Pigeon Parrot Quail and other small birds drinking clean water. small and exquisite, colorful and diverse, so that birds have the desire to drink water. Suitable for working family, even if overtime travel, do not worry baby no water to drink. Gravity principle, automatic supply, easy to use.