This is handmade. Suitable for small birds such as雛 (hinahina - baby birds), young birds, Java Sparrows, Bengalese Finches, and Java Rice Birds. Entrance diameter: Approximately 6.5 cm Depth from entrance: Approximately 12 cm Nest hanger is not included. Nest hangers are sold separately. It will be an additional 200 yen. If you would like one, please comment and I will make the changes. The color of the nest hanger is random. Desired colors are an additional 50 yen, White is an additional 100 yen. As this is handmade, there may be slight individual differences. If you are concerned about minor details, please refrain from purchasing. m(_ _)m May your beloved bird and their owner have a happy time together! ☆*:.。. o(≧▽≦)o .。.:*☆