Pro-One Billet Turn Signals For Harley Touring Features Here's the custom way to replace your stock turn signals. They bolt directly to the stock mounting holes with no drilling. They come with super-bright single-function Amber LEDs. Includes Amber and Smoke Lenses. LED board can be made multi-function with optional highlow module or dual-intensity module. As with all Pro-One Billet accessories, they're machined from 6061-T6 Billet Aluminum. Super-durable Black Anodize finish.