The Lava Ledge is made for Chinchillas, rabbits, rats, hamsters, gerbils and mice. The ledge encourages natural jumping exercises. Made of pumice rock, it is completely safe to chew, and promotes clean and healthy teeth. The Lava Ledge easily attaches to any wire home. Completely safe to chew with "pet safe" food colors Enhances your pet's life with a fun playtime activity For chinchilla and other small animals Attach to any wire home Encourages natural jumping exercises for mental and physical wellness Assorted Colours 6" x 2.6" x 1.25"