Target your glutes and thighs and work your entire body with Element Fitness Power Gliding Discs. Great for multi-surface areas, these discs deliver constant resistance, adding intensity to your lunges, squats and upper-body workouts. Plus, with virtually every move, you'll engage your core, giving you amazing abs, glutes and thighs! Two double-sided sliding discs: blue Smooth side for carpet, black Fabric side for hard surfaces and wood. Get a workout anywhere with easy portability. 7" diameter Sold as a pair.