Specifications-Dimensions (length * width * height): 2.8" x 1.3" x 5.2", fasteners: 0.4"-0.7", outlet size: 0.5". Capacity: 220 ml.High-quality PVC material, safe and healthy, easy to hang and use on vertical railing installation. Will not harm your pet.Designed for small birds-you can stock your pet bird like water. But you can't enlarge the seed inside. This clear plastic feeder is specially designed for canaries, lovebirds, parakeets and other similar-sized birds.Keep the cage clean-easy to keep the cage clean, the transparent material allows you to observe the birds easily and comfortably. very safe Easy to fill water or food-perfect for filling water. It is easy to add water without opening the cage. Easy to disassemble and dump.