KSK wooden perch your bird will spend most of his life standing, so preventing foot problems is veryvital. Wooden perch in cage different types and diameters help to exercise your bird’s feet so he won’t get tired of standing on same-sized perches of the same material. Perches will also help your bird navigate his cage and have places to sleep and spend his time. *Material. 100% safe wood protect with natural therapy, non currosive two ss washer to tight on cage with help of ss. Wing nut * use for medium, larg &extra larg size bird like cockatoo, african grey perrot, maccow help your bird navigate his cage and have places to sleep and spend his time. This is natural shape perch so they are not in a similer shapes as a image, but they are same in colour.