The RCBS Case Cleaner Media Sifter is an excellent accessory for reloaders who are tired of having to sort though their media and pick out brass by hand. In seconds media and cases are separated from each other. Just pour the cleaned brass and media into a bucket or other suitable container then place the sifter on top of a vibratory tumbler and turn it on. Slowly pour the brass and media into the sifter and the media will be sifted back into the tumbler leaving the cleaned brass in the sifter.