Range of motion limiter allows users to set start and end points for safety and comfort Adjustable for hip flexion/extension and abduction/adduction movements Entire upper portion slides vertically on linear bearings to adjust pivot point for users of different heights Adjustable pad for various exercises Non-skid platform Incremental 3.5 and 6.5 lb (1.58 & 2.9 kg) micro-loading adjustments Cold rolled steel weight stacks with noise dampening Stainless steel guide rods resist rust and stay smooth Kevlar belts for quiet, smooth action and optimal tensile strength; belt contains 2200 lb (998 kg) tensile strength aircraft cables Marine-grade double stitched upholstery Heavy-duty European-styled cushions