Moveable Platforms by Blue Ribbon
Cage Connection
Moveable Platforms by Blue Ribbon
"For bird and small animal cages, movable platform attaches to any horizontal cage wire, 2 sizes and 2 colors available."
"This platform will attach inside or outside to any bird or small animal cage with horizontal wire. Ideal to secure nesting boxes, extra cage level for play toys and to assist birds with foot and leg related problems."