Wheeled Magnetic Sweeps easily naviaget uneven terrain whill attracting and retaining metal debris. The 4" diameter magnet housing is designed to freely roatate on a stainless steel axle. There is no need for height adjustment. The cylindrical housing turns slightly as obstacles are encountered to prevent captured debris from being wiped off during use. Permananet magnets assure long service life and resistance to shock and vibration. Magnets are also replaceable. A T-handle with cushion grips offers superior maneuverability and control. The Wheeled Sweep's rotational quick release allows material to be removed from the tool quickly and easily. A heavy duty torsion sring returns magnetic surface of housing to down poisiont after debris is released.