MMG Powersports Adjustable Mirror Set - 8mm RH/RH Thread - Flat Black &ndash; for mid-size Motorcycles Scooters - Includes Conversion Adapter Kit to 10mm and Both RH/RH and RH/LH Thread (4237) Good quality mirrors, durable with all weather resistant Materials. Made of Black ABS plastic with Glossy Accent on top | Clear Glass Left and Right Side (Both included) 8MM Right/Right thread, both mirrors turn to the right to tighten Conversion KIT will turn these mirrors to: 8mm RH/LH or 10mm RH/RH Thread or 10mm RH/LH Thread