This toy is an exact replica of the Space Hammer, part of the power chew tool set used by Alpha the Dog during his interplanetary explorations. The Hammer was designed specifically to be used without the need of hands (or paws). By simply biting the handle, the tool would activate the spherical joint and self adjust to the angle required, and hammer automatically. Alpha the Dog's bite strength would determine the hammering power with amazing precision. Indeed, a marvel of science and now available for your dog’s enjoyment. * Recommended for medium and big dogs that chew like beasts * No toy is indestructible