The Kseroo Dog Toys for Aggressive Chewers Large Breed, Kseroo Tough Bones Dog Chew Toy for Dogs, Durable Nylon Puppy Teething Chew Toys Medium Dogs, Heavy Duty Peanut Butter Flavor Dog Toys for Tough Chewers is a great way to keep your dog active and entertained. Made of sturdy and durable nylon, these toys are perfect for any dog owner who wants to give their pet a treat that will last for hours. With a variety of designs to choose from, there is sure to be a toy that your dog will love.