Features: A feeder is necessary for birds in the cage to feed them food or water. This Water Feeder can store 140ml water. Automatic design and you will no need to organize the water regularly. Designed specifically for pet birdowners, this product is great for those who want to provide their parrots with a constant supply of freshwater. Whether placed inside or outside the cage, this dispenser is suitable for use in a variety of settings and will help keep your bird healthy. Specifications: Material: Plastic Size: Approx.5.5x13.4cm/2.17x5.28inch Color: White, Green, Blue (optional） Package Includes: 1x Automatic Drinker for Pet Bird note: 1.Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item.