The Club Ultra Violet Marking System # 492 Each Set Contains:1 Fine Point Pen, 1 Medium Point Pen and 1 UV Light Do everything you can to help the police return your promptly to you if you become the victim of a thief. If you mark you valuables with a visible ID the thief will likely dispose of the item never to be seen again. Identify computers, cameras, radios, iPods, TV's all personal property easy way to identify personal property