Powerline PGM200X Glute Master Unit is specifically designed to strengthen and tone glutes, by engineering movement that totally isolates gluteal, hamstring, and quadriceps muscles Quality rollers, comfortable pads, and simple adjustments make this an easy unit to use at home for fitness enthusiasts of all levels Works each leg individually for maximum isolation of gluteus maximus, medius, and minimus; adjustable forearm pads slide to accommodate users of any height Standard weight horn allows you to load weights to increase resistance; weights and adapter sleeves sold separately Includes limited ten-year manufacturer's warranty on frame and one-year manufacturer's warranty on all other parts