Nylabone puppy teething keys have been designed for teething puppies. They satisfy your puppy, natural urge to chew in a healthy, non-destructive way. Chewing puppy teething keys helps control plaque and tartar, while engaging and entertaining your puppy. Puppy teething keys should not be given to powerful chewers or puppies with any adult teeth. Different dogshave different chewing styles and strengths, even within the same breed. Be sure to choose the correct chew for your dog. Always supervise the use of chews and toys. Replace if chew becomes worn or damaged.DirectionsDesigned for teething puppies up to 25 lbs.Safety WarningThis product is for animal use only and should under no circumstances be administered to any animal other than that which is stated for.