The Nylabone Dental PRO Action Chew is a long-lasting chew that provides dental stimulation while helping to satisfy your dog's natural chewing urges. The three distinct textures dispense triple cleaning action - dual textured ends clean teeth while the ribbed middle section massages gums. Small bristle-like protrusions are raised during chewing to help control plaque and tartar build-up. This Dental PRO Action Chew is non-toxic, veterinarian recommended, and helps promote fresh breath and optimal oral hygiene. The large size is ideal for satisfying the chewing instincts of powerful chewers weighing up to 50 pounds. Your dog will enjoy hours of good, "clean" fun with this beneficial chew.