M-PETS Coto Black Ring Large Eco Friendly Dog Toy (Pack of 4) M-Pets Coto Black Ring dog toys make a fun addition to bonding time with your furry friend. This tug toy for dogs are not just eco-friendly and durable, it is also great in helping reducing stress and loneliness, helps provide mental stimulation for your dogs, and helps promote good dental health. Diameter: 18cm