ECE approved left & right rear turn signal set. Super small (38mm overall width). Used to replace bulky stock turn signals. Mounts to any flat surface. Offers exceptional bright SMD LED illumination for safety in traffic. Can be installed directly on the fender struts without requiring adapters. Alternatively perfect to install on any flat surface you can imagine. - ECE approved - Registered small Aero design - Very bright - High quality CNC machined aluminum housings - Mounts to any flat surface - Just 38mm overall width - Bolt-on installation ease. Note: A HeinzBikes load equalizer (turn signal flasher frequency sensor) is available as 706793 and required for all earlier non CAN-bus H-D models (pre-2011 Softail; Pre-2012 Dyna; pre-2014 Touring and pre-2014 XL models that upgrade from incandescent light bulbs to LED turn signals to correct blink frequency.