You never know what you will find next at Monster Scooter Parts The left and right black mirror set with 8 mm left & right-hand threads is functionally and dimensionally identical to our Left and Right Black Mirror Set with 8 mm Threads; but this pair is distinguished by its two parts having opposite left and right threads Description You never know what you will find next at Monster Scooter Parts! The left and right black mirror set with 8 mm left &; right-hand threads is functionally and dimensionally identical to our Left and Right Black Mirror Set with 8 mm Threads; but this pair is distinguished by its two parts having opposite left and right threads. These are high quality scooter accessories that appear to be adaptable to almost any and every model of motor scooter out there. If you have pre-threaded mounting holes on your scooter’s handlebars, check to see if both sides are the same. If they are the same, then you need our Left and Right Black Mirror Set with 8 mm Threads; but if they use opposite threaded holes, then this is the set that you want.