Bird Cage Feeding Door Size: The birdcage for the transparent acrylic bird feeder and bird water dispenser should have feeding doors measuring approximately 3.15 in x 3.15 in (8 cm x 8 cm). Additionally, two such doors are required on the cage to allow simultaneous use of a food dispenser and water dispenser Water Bowl Size: The 17oz bird water dispenser features a spacious 3.4 inch x 3.4 inch water bowl, ideal for medium to large birds. Note: Smaller birds may attempt to bathe in the bowl, which can lead to water contamination No Mess Bird Feeder Water Dispenser set: The bird water feeder set includes a no mess automatic bird feeder and water dispenser for parrots. automatic feeding design saves time and effort, while the transparent structure allows easy monitoring of food and water levels for timely refills. Please measure your cage size before purchase to a proper fit Proper Installation and Use: Installation of our bird water dispenser, align the bottle cap opening with the rear opening and the bottle in until water flows out smoothly and automatically. Large Capacity Feeder Waterer: Both the bird feeder and water dispenser have 17 ounce capacity, which can hold about 7-15 days of seeds and water ,allowing you to go on vacation, work, or attend a party without worrying about your feathered friends going hungry No Mess and Easy Clean:No mess bird feeder design keeps the cage clean by collecting uneaten seeds and hulls in a separate compartment below. The removable bottom drawer makes cleanup easy Color:As Shown Material:plastic Package Contents: 1 x feeder 1 x water feeder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.