High-Quality Materials: This set of bird feeders is made of high-quality plastic, durable, wear-resistant, harmless to birds, and can be used for a long time. Easy to Use: This bird feeder is easy to install, it can be installed in the bird cage with screws, and it does not take too much time to complete the installation. Fast Feeding: You only need to put the grain or water into the pipe in advance. The bird can eat the grain or drink the water on its own without your constant attention, and this product is not easy to leak and is very safe. About Size: automatic bird feeder dispenser: 170x35mm, inner diameter: 31.5mm, cover: 62x37mm, capacity: 120ml Applicable objects: very suitable for small birds, such as parrots, macaws, love birds, etc. Product description Introduce: 5 Sets 5 Styles Automatic Bird Feeder Dispenser, Bird Water Bottle Drinker Container, Waterer Clip Hanging in Birds Cage for Parrots. Material: Plastic. Note: Please allow 1-3cm error due to manual measurement. Due