Petstages Kitty Chew Wheels, Cleans Teeth and Strengthens Jaw Muscles, 4 Pack 4 ring shaped plastic and cloth cat chew toys Kitty Chew Wheel by Petstages is perfect for cats that love to chew Durable ring made of nontoxic materials provides perfect chew appeal Chewy spokes feel good on kitty's teeth and are much more fun than brushing Ring shape will exercise your pet's jaw muscles and her brain at the same time, keeping her healthy and preventing boredom