The DuraChew Double Action Chew was designed by Nylabone so your dog can have the benefit of a chew that is both soft for carrying, yet ultra-durable for chewing. It features multiple textures for ultimate chewing satisfaction. Small bristle-like protrusions form on the bacon-flavored ends during chewing to help keep teeth clean, and control plaque and tartar build-up. In addition, the minty fresh, soft rubber center delivers a healthy gum massage. This DuraChew Double Action Chew is non-toxic, and veterinarian recommended. The wolf sized DuraChew Double Action Chew is ideal for satisfying the chewing instincts of powerful chewers weighing up to 35 pounds.