The Galileo is veterinarian recommended, and truly sets the standard for chew bones. The Nylabone DuraChew Galileo Bone is perfect for satisfying your dog's natural chewing urges. This extra strong bone is made of extra tough nylon, and is designed to stand up to even the most powerful chewers. Small bristle-like protrusions form on the ends during chewing to help keep teeth clean, and control plaque and tartar build-up. The unique shape and formidable size are sure to keep your dog's attention. They will enjoy hours of chewing pleasure with the ultra-durable bone. The souper sized Galileo Bone is ideal for dogs weighing 50 pounds or more.