This 5.5-pound quantity of Lyman Turbo Tufnut Media comes in a convenient easy-pour container to minimize spills and wasted media. Not only is this media easy to use, but it is highly efficient as well, guaranteed to clean and polish even large batches of cartridge cases in a matter of hours. Lyman Turbo Tufnut Media is made from rouge-bearing crushed nut shells and is highly abrasive to ensure faster and more efficient cleaning and polishing of all kinds of cartridge cases. For a reliable tumbler media that cleans even the most tarnished and fouled cases, go with Lyman Turbo Tufnut Media.