[Durable bird nesting box made out of all natural wood. Perfect Spot for Your Parakeet To Rest and Nest. Top opening for easy cleaning and removal of bedding materials. Encourages natural breeding and nesting behaviors in birds. Size: S:19.5*12*12cm/7.7*4.7*4.7 inch（Export 5.5cm/2.1 inch） M:24.5*13*13cm/9.6*5.1*5.1 inch（Export 5.5cm/2.1 inch） L:29*15*15cm/11.4*5.9*5.9 inch（Export 6.5cm/2.5 inch） XL:34*17.5*19.5cm/13.4*6.9*7.7 inch（Export 6.5cm/2.5 inch）]