Rogz Da Bone.. Rogz have created a nearly indestructible Chew toy for dogs. Designed for dog's teeth and to build up strength in their jaws, the Da Bone is soft enough not to hurt your dog's teeth but firm enough to bounce. You may even wish to push treats into the hole and watch your dog have hours of fun!. Available in 5 different colours & 3 different sizes.. SMALL 95 mm. MEDIUM 140 mm. LARGE 210 mm. Please supervise your pet when they are playing with toys and remove any damaged or worn toys immediately.