The Lyman 1200 Pro Tumbler and 2Ibs of Corncob media bundle provide reloaders with everything they need to clean their dirty, tarnished cases. The 1200 Pro features a "built-in" sifter lid for quick and easy media separation. The economic 1200 Pro holds 2Ibs of media and will clean up to 350 cases per cycle. Our cleaning media is the most effective choice for cleaning dirty and tarnished cases. A few hours in our 1200 Pro tumbler and cases will be clean, polished and ready for reloading.