You are buying a pair of white or red deck lights set 94mm for G-Booster, Y12pro WMRLI, of your choice as pictured.
 
They will fit our Sportster, the G-Booster, the Y12Pro and more electric scooters but keep in mind that it's your responsibility to make sure that they will work with your scooter, before buyng them.
There are no instructions on how to fit them so if you don't know how then we suggest that you have a professional fit them.