" Clip-on Carrot is the crispy, crunchy chew toy for critters that easily clips to any wire cage. Clip-on chews are made from all natural wood with U.S.D.A. vegetable food colors to be completely safe for all small animals. Clip-on Carrot offers healthy chewing fun for Bunnies, Guinea Pigs, Chinchillas, and Pet Rats. Clip-on Carrot keeps the chew off cage floors and includes a free disposable attachment clip."