Bridgestone Alrock Gold This is an anti-theft accessory for bicycles. I purchased it last year but never used it. Although it is unused, the packaging has scratches and dirt. Also, since it is unopened, the initial condition and unlocking operation have not been confirmed. I cannot respond to initial defects, so please refrain from purchasing if you are concerned. It will be shipped via Rakuraku Mercari's Takkyubin Compact. I am not considering lowering the price, so I will not reply to comments.