This unique dual function push-pull design is the ideal product for your space, combining two motions in one beautifully designed machine. This product strengthens your quadriceps. Direct drive system offers two opposing cams for less cable-slop and faster workout changeover; Easy transition from leg extension to seated leg curl; Plate increments: 20 x 11 lbs (5 kg); Adjustable seat back and leg pads for user customization.