Grooves & soft spikes for teeth cleaning action. Promotes healthy teeth and gums. A dental dog toy that works well with treats, too. Made of tough, durable material that stands up to chewing, but it is not enough that it won't harm teeth. Safe and non-toxic, cleans in the dishwasher! Grooves and soft spikes stimulate gums and clean teeth. Spread peanut butter across groves to initiate chewing or place kibble in the ends to add interest for your dog. DuraBone, the perfect pet toy! Made in China.