Core-engaging sliders that add smooth resistance to squats, lunges and push-up variations, making home or on-the-go workouts more dynamic and effective. ABS plastic and a dense, supportive foam Product Dimensions: 6" x 9" x 1/4" per slider Additive to yoga, aerobics, Pilates, home workouts, core training and rehabilitation Includes 2 Capsule Sliders and a color-matched carrying case