Each pack contains one 12″ piece of 0.040″ diameter Ultra Super Flex fiber in each of our five vivid colors (blue, green, yellow, red, and ruby red). USF fiber is our standard bright fiber, which is excellent for general use in a variety of aiming applications. USF flares easily with heat (if needed), allowing for installation in nearly all sights styles.

Visit our products page to view additional sizes and colors.