The Kong Puppy Teething Stick is made with unique Kong Classic puppy rubber. The Denta-Ridges gently clean teeth and soothe sore gums when chewed. Fill them with treats or peanut butter to encourage long-lasting play sessions. Playing with the Puppy Teething Stick helps teach puppies appropriate chewing behaviour. Use with puppies until they reach 9 months, then they can graduate toKong Classic Rubber toys.