Cats Whirling LED BallsCats Whirling LED Balls Features: 1. Strong absorption suction cup base allows the toy to be securely and firmly fixed on wherever you want to suck like on the floor, doors and windows, under the table, and more. 2. Dual transparent bins with detachable covers on the round wind blade of the windmill, you can put luminous balls, bells and mint balls to make more flexible play combination which will simulate the interest easily and keep the curiosity