The ARROW Olympic fractional Weight plates are constructed from high quality steel and are designed to fit all olympic barbells. Fractional plates are a must have item for all weightlifters. Fractional plates allow for a small increase of weight on the barbell, perfect for pushing through a plateau or when you are working on your 1RM. The fractional plates are also perfect for lifters looking to perfect their technique, as you can increase the weight gradually in small increments whilst maintaining great form.