Features: Materials: quality plastic, it is strong, allowing your pet to always drink clean water. Easy to use: The structure is simple and convenient, easy to install and clean. Hanging outside the cages of small animals and birds for easy filling next time. Automatic water filling: just fill the bottle with water. When it runs out, it will automatically refill, and when it is full, it will automatically stop. You donot have to worry about your pet drinking water anymore. Save money: Simply get a suitable bottle or water bottle (threaded) to the water dispenser to get automatic water dispenser. This bird drinker seamlessly integrates into your bird cage, offering a solution for maintaining your birds' health, while its user friendly design ensures easy installation and maintenance. Specifications: Component: Plastic Size: Approx.10.8x4.9cm/4.25x1.93inch Color: White/Yellow/Blue Quantity: 20Pcs Package Includes: 20Pcs Automatic Bird Drinker note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.