This is a flash ring from BIGBANG's T.O.P. I bought it at a live venue several years ago. I have kept it carefully. I used it once to check the lights immediately after purchase and again for this listing, but otherwise it's unused. It's in beautiful condition with no noticeable scratches or stains. I will ship it with the batteries removed. You can insert the batteries by turning the part where you put your finger through. It requires lithium batteries (CR1220 x 2). I will include the insulator. Please refrain from purchasing if you are nervous or seeking perfection, as it has been several years since I purchased it. Immediate purchase is OK! Please feel free to comment if you have any other questions. I am also selling a lot of other BIGBANG goods, so please take a look if you'd like. ^_^