Strengthen your legs and stretch your limbs as you spin the wheels of Marcy Foldable Exercise Bike! This exercise device offers fat-blasting cardio exercise, as each pedal targets the quads, hamstrings, and glutes. Strengthens your leg muscles and gain well-developed, toned legs as you lose weight. Sweat away the extra pounds with this bicycle. A manually adjustable continuous resistance offers various intensity degrees on the bicycle. 8 levels of magnetic resistance control let you go fast or go slow. You can take a smooth spin on the bike to simulate a leisurely drive by the park or take it up a notch and increase the resistance level for harder pedaling.