Rowdy Rustler Petlinks newest electronic motion cat toy has an erratically twirling ball with raffia ribbons that when placed inside the toy's nylon tent creates rustling and movement mimicking cat's prey in bushes or brush. The excitement this toy generates in cats is a joy to watch. Cats will peek into the tent, reach in to capture the spinning ball which will send the ball in a new direction in the tent-too much fun! 2 AA batteries included.