Lyman Stainless Steel Tumbling Media 5LBS -A good quality stainless steel media, made to the correct length and diameters is needed however, to take advantage of these benefits. Lyman stainless steel media pins are made to the correct dimensions for optimum cleaning power. They also resist rust and corrosion when in storage. The stainless steel media pins are available in 5 pound boxes and will work with the Lyman Cyclone Rotary Tumbler or other brands of rotary case tumblers. Lyman's Stainless Steel Tumbling Media 5lbs is the best tumbler available for cleaning brass media. Media pins are made to the proper dimensions for optimum cleaning powerThe stainless steel pins resist rust and corrosionWorks with all brands of rotary case tumblersPacked in 5 pound boxesModel - 7631375