Wooden PlatformSwing and Ladder Set for Mouse, Chinchilla, Rat, Gerbil and Dwarf Hamster,Climbing Kits for Small Animals Fun playground and resting place. Made with pet safe materials. Relieves boredom and increases activity level. Ideal for hamster, mouse and other small furry animals. Quickly and easily attach to any cage. Securely attaches to cage with a built-in bolt and wing nut. Package including1*climbing kit