Nylabone Durable Dental Dinosaur Chew Toy 3 Pack (T-Rex) 3 Pack T Rex Designed for powerful chewers. Gently rounded dental nubs and bristles raised during chewing help clean teeth plus control plaque and tartar build-up Suitable for dogs up to 50 pounds Gently rounded dental nubs and bristles raised during chewing help clean teeth plus control plaque & tartar build-up. Durable Dental Dinosaur