Leg Extension/Leg Curl combo machine works the hamstring and quadricep muscles in the lower body from an anatomically correct position. Offers proper biomechanics in movement and allows both everyday exercisers and advanced users to adjust range of motion suitable for individual workout level. Eleven-gauge frame offers lifetime warranty against weld failure, bending, or cracking. P-151 unit is 64 ins. high by 40 ins. wide by 80 ins. long, with 225-lb. weight stack. GS-07F-9736H.