Fractional weight plates allow you to micro load and micro progress your lifts to avoid plateaus and encourage continued progression in the weight room. - Bust through plateaus - Great for percentage based training - more accurately hit your numbers - Great for making progress each training session or microcycle. These plates allow you to progress your lifts in 2 pound increments- 1 pound on each side of the barbell. They are non-marking rubber for ease of carrying in your gym bag and for no risk of damage to your barbell or other plates!