Wide foot platform to train different thigh muscles…quads, glutes, hamstrings Smooth rollers on hardened guide rods for super smooth action Adjustable sled for pre-stretch positionsQuick locking handle for sled adjustments Anatomically correct cam for proper muscle resistance 300 lb steel weight stack with magnetic selector pin74″ l x 40″ w x 63″ h, 906 lbs 188 cm x 102 cm x 160 cm, 411 kg