Enjoy a new twist on a classic toy! The Jack is a challenging, durable, refillable treat holding toy. The durable nylon and rubber Jack holds Busy Buddy natural rawhide and chicken-flavored dental treat ring refills for longer lasting playtime. Watch your dog chew, bite, and twist the Jack to figure out how to get the delicious treats in the middle. Treat rings can be placed in multiple locations to increase the challenge over time.