This is an LED pointer cat toy. I am selling it because my cat, whom I owned, has passed away. A beam comes out while the switch is pressed. When projected onto a distant surface, it appears as a mouse-shaped light. It works, but the chain part is old. [Features] ・A toy that plays with light. You can stay seated and be your cat's exercise partner. ・Simply move the mouse-shaped light source (Chu Beam) as if shining a penlight. ・Shine the Chu Beam on the wall or floor and let your cat jump & dash, having fun exercising indoors and relieving stress. [Specifications] Manufacturer: DoggyMan Brand: CattyMan Size: Approximately 2.5cm in diameter x 11.5cm in length Continuous lighting time: 6 hours (alkaline batteries) Included: 1 AAA battery, ball chain