Use a reflective reflector radium warning sticker for motorcycle to notify the bike in the dark of night. The reflective radium warning sticker hanging under the exhaust pipe indicates the presence of the bike by flashing the light of any vehicle running on it. When you park your bike on the side of the road in the dark of night. This warning sticker will warn the drivers of all vehicles coming from the back of the bike. At the same time, it enhances the beauty of the bike as a decoration item.