Works the quadriceps and hip flexors. Precision bearings for a smooth motion. Cam provides perfect quadriceps isolation. Seat back and cam are adjustable. 200lb. weight stack mounted on chrome guide rods w/ full length stack guard. Constructed of 2in x 3in heavy all steel tubing. Pads are 2.5in high density foam covered in marine grade vinyl. Durable textured black powder coated finish. Pad color options black or gray.