ChiChewy Zippz grooves hold treat paste for a durable toy that satisfies foraging, chewing and fetching instincts all in one. The deep grooves massage gums and clean teeth as dogs chew, with or without treats. The intriguing mix of textures captivates pups for long bouts of interactive or solo play. Special Features Grooves massage and clean teeth and gums as dogs chew, with or without treats Grooves hold treats for foraging, fetching & chewing satisfaction Durable material for long-lasting fun Deep grooves hold treat paste for a durable toy that satisfies foraging, chewing and fetching instincts for long-lasting interactive or solo play. Grooves hold yummy treats and help clean teeth and massage gums, durable material for outdoor and indoor play. Mixed textures captivate dogs for extended fun sessions, with or without treats. ChiChewy Zippz comes in Ball (size Medium and Large) Stick (size Large), Ring (size Small) Bone (size Medium). Over 80% of dogs over age 3 have dental problems?