Soft yet durable, reduces the noise during play, ideal for wooden floors. Fill up the Buster Soft Cube with food or treats to stimulate your dog both mentally and physically by encouraging natural hunting instincts. The tasty reward keep your dog entertained for hours. Buster Soft Cube is made of a soft, non-toxic and recyclable material, which is safe for dogs and reduces the noise during play. Just like the original Buster Cube the Soft cubes are available in 5 inch size and 3 inch sizes.