Interactive Cat Kitten Toy with Rotating Mouse and Top Scratch Surface Plus Bonus 2 Oversize Cat Play Balls with Bells This Cat Toy Interactive Toy Brings a Bit of Everything to Keep your Fur Babies Entertained and Active for Hours For extra chasing fun - 2 Oversized Cat Play Balls with Bells are included. No assembly or batteries required. Take the pad and balls out of the package and watch your kitty go! Mouse spins away from your cats grasp- 360 both clockwise and counter-clockwise To Enjoy Scratching, Catching and Biting - Dimensions: Rotating Toy 10 in x 10 in & Each Ball is 2 1/2 in in diameter.