These high quality turn signals are machined from Billet aluminum and feature TÜV approved lenses. Dimensions are 2 3/4" long and 1 7/8" in diameter. These sets work with any stock or stock style flasher unit. Available in polished, chrome plated or black anodized. When using a 3 1/2 or 5 Gallon tank fork stops must be mounted. Turn signals are available in sets of 2 for front application, sets of 2 for rear application, and full sets with front and rear turn signals.