Features: Specification: Size(L*for W*H): 2.9" x 1.3" x 5.1", fasteners: 0.4"-0.7", exit size: 0.6". Capacity: 220 ml. Package include: 1 Piece Parakeet water dispenser. It can be used to hold water, seed and other things. High-quality Mateiral: Made of top quality PVC material, safe, durable, non-toxic, and healthy. Easy to hang and use on the vertical railing of cages. No hurt to your lovely pet. Designed for Small Birds: You can put your pet bird food like water, grass seed, grain in it. But you can'for t put big seeds in it. This clear plastic feeder is designed for small sized parakeets, lovebirds, canaries, and other small birds of similar size. Keep the Cage Clean: Easy to keep the bird cage clean, tidy, and no mess. Transparent material allows you to watch birds easily. Easy to Refill Water or Food: Parakeet Water Dispenser is perfect to contain water. Easy to refill, remove, and dump. No need to open the cage. Package Includes: 1 Piece Automatic Water Feeder Specifications: Material: Plastic Color: Blue/Crystal/Yellow Size: Approx.7.3x3.3x13cm/2.87x1.30x5.12in, Feeding Port Width Approx.1.5cm/0.59in Weight: Approx.65g note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!