1 / When the windmill is moved gently, it turns and the cats love not to let go of their claws. Cat-turn windmills can reduce the fear of cats. You are having fun and being healthy. 2 / The suction cup design makes the cat toy stick to the wall or other surface easily with strong viscous force and won't fall off when your kitten kicks and plays. The suction cup can be removed from one surface to another. 3 / On the round blades of the windmill there are 3 transparent containers with a light bulb inside, which can be turned by slightly turning the windmill. The light bulb inside lights up, which allows the cat to keep an eye on at all times and that can place mint balls to attract cats. 4 / When you are away from home, cats can feel bored and lonely. The rotatable kitten toy can easily stimulate your cat's imagination and keep your cat entertained for hours if left alone. Specification: Materials: transparent ABS (top cover), ABS (inside cover), PP (bottom cover) Color: Blue, Yellow, Green, Pink (Optional) Size: 16cmx7cm / 6.30inx2.76in Package includes: 1 set x Kitten Windmill Ball