Our Pro-Fitness.com PF273 Leg Curl Machine is the ultimate hamstring exercise unit. The center pull pivot arm with dual self lubricating pivot bushings allows an even resistance for both legs. Large adjustable leg pads and convenient rubber encased gripping handles ensure proper body alignment and maximum comfort throughout the exercise movement. The convenient side mounted weight stack enables for a quick weight change for performing drop sets. The dual angled design positions the userís upper torso and lower body for a proper hamstring stretch without compromise.