The Funny Bunny Ball is a solid hardwood ball measuring a full 2-1/2 " (about the size of a tennis ball). This is a great toy for you and your bunny to play with together, or for your bunny to nudge around her cage alone.
We have a slightly slanted kitchen floor and Artemis loves rolling the ball down the floor back to me so I can roll it back up to her. She finds this toy fascinating because she can't bite into it no matter how hard she tries, but she sure loves pushing and pawing it.