Jolly Pets Jolly Tuff Treader Dog Toy Packs a durable punch for any dog. Made of extra durable "tuff" rubber and designed to stand up to the most powerful chewer Rewards good chewing behavior to encourage longer playtime Thick natural rubber and unique raised surfaces help to clean teeth while dog chews Dishwasher safe - Top Rack Treat Dispensing Suitable for dogs 30 lbs +