It's a star-shaped room light. I used it for about a year, and it still lights up properly. I'm selling it because I'm redecorating. It's hard to see, but as shown in the third picture, the adhesive part is visible. You can tell if you look closely, but I don't think it will be noticeable when it's displayed. Since it's a used item, please refrain from purchasing if you are concerned about it. Number of lights: 40 Total length: 4m Weight: 100g It lights up with 3 AA batteries. It can be used for Christmas decorations, home parties, etc.