Woodcraft Weighted Bar End Sliders fit all Woodcraft bars and bars with a 5/8" inner diameter. The puck mount is passed down from the Woodcraft patented frame sliders. The perpendicular mount bolt eliminates the need to dig plastic out of the puck after a crash making replacement a breeze. Note: Woodcraft bar ends are designed to fit Woodcraft bars ONLY, but may fit other bars with a 5/8" inner diameter. Detailed Specifications: Woodcraft weighted bar end sliders weigh 4.5 ounces each.