The PetSport 6 Pack of Junior Peanut Butter Tuff Balls is a great way to keep your dog entertained with some fun new toys. These balls are made of durable polyester and have a thick coating of peanut butter that will not wear off easily. They also have an extra-thick rubber wall for added durability. The set includes six balls in different colors and sizes so you can choose which one best suits your dog.