BOINGO RUGBY BALL / AMERICAN FOOTBALL RUBBER DOG TOY - COLOUR MAY VARY FROM PICTURE These strong and hardy balls are made of a plastic black ball in the center, with sturdy rubber outer ridges which medium to large sized dogs find easier to grip in their teeth and hold. Another feature of this toy is that it has a small ball (or metal ball-bearing) fused inside the black inner ball. This means that every time the toy is moved it makes a swishing rattling sound. Please be aware that this toy is quite heavy and some dogs may prefer to push it across the floor with their nose or paws, listening to the sound it makes.
