Save trips to the vet by giving your best buddy the PetSafe Busy Buddy Bristle Bone. It features durable rubber nubs and nylon bristles that will clean your dog's teeth and stimulate gums with every chew. It holds yummy rawhide treat rings that can be refilled to reward your dog's good behavior. It's made for dogs over 6 months old, and comes with 4 Busy Buddy natural rawhide refill rings (additional rings sold separately). It's easy to assemble and dishwasher-safe. Your dog will thank you for it! Durable rubber nubs and nylon bristles clean teeth and stimulate gums Made for dogs over 6 months old Comes with 4 rawhide treat rings Contains yummy refillable natural rawhide rings (sold separately) Dishwasher safe PetSafe Busy Buddy Natural Rawhide Rings sold separately and can be found through item search for number 1918891