INMAKER Exercise Sliders Fitness, Dual Sided Strength Slides, Core Gliding Discs with Carry Bag, Manual and EbookEffective. Experience a visible body transformation! Low impact on joints in low frictional weight bearing workouts. Break body adaptation and burn fat to reveal leaner, flatter abs. Improve agility, stability, coordination. Matching. To perform core slider exercises you need only a sleep bag size place. 2 sliders spice up home gym, aerobics, calisthenics, street workout, etc. User friendly for beginners, big guys, lifestyle builders and rehab. Smooth