Description:Offers you a fun effective way for your body buildingWorks for your chest, abdomen, legs or arms muscle building and reducing the risk of injure while trainingDurable, Compact and lightweight and breaks the range of exercise; you can take it with you anywhereCore Sliders engage your core muscles throughout the full range of motion of an exercise while introducing a balance challengeGreat for Pilates, lunges, planks, bridges, mountain climbers, fitness, yoga, strength trainingSpecification:Material: ABSDiameter: Approx.17.7cm/7inchThickness: Approx. 0.5cmPackage Includes:1 Pair Exercise SlidersNote:Please allow slightly difference due to manual measurement.Color may be slightly different since different monitor. Thanks!