The living world hay wheel provides an easy and convenient way to feed hay to small pet mammals. simply fill it with hay and watch as your pet has fun spinning or rolling it around. you can even add treats for extra appeal. the hay wheel encourages natural foraging behavior and is an enticing way to provide essential nutrients. pets can access hay on the front, as well as on the sides through carrot-shaped openings. the hay wheel can be used 3 ways: installed on the cage, placed on a stand, or free-standing, enabling your furry friend to roll it around. in all cases, the hay remains fresh and clean. it is suitable for rabbits, guinea pigs and chinchillas.