Pre-installed 2 x 10mm Clockwise regular Mount thread, to fit most Japanese Cruiser Comes with extra 2 x 8mm clockwise mount stud for Scooters Comes with extra 1 x 10mm Reverse thread for Yamaha bikes Install:Wire diagram: White=Ground, Red=Positive (Single Function, no running light, only turn signals) Package Includes: One pair of Rear-view Mirrors (both left and right side) Product Description Features: 100% Brand New and Quality Guaranteed! DC12V input, LED POWER 1.5W Rear Lens Color: Smoke Mirror Lens Color: Clear LED color: Amber Body Color: Black Size: As picture shows Hand Skeleton Design Blinkers Plastic Mirror housing with Metal Stem Pre-installed 2 x 10mm Clockwise regular Mount thread, to fit most Japanese Cruiser Comes with extra 2 x 8mm clockwise mount stud for Scooters Comes with extra 1 x 10mm Reverse thread for Yamaha bikes Sold in Pair, LEFT and RIGHT Easy to install, instruction is not included. Install:Wire diagram: White=Ground, Red=Positive