Features Lyman 1200 Pro Tumbler with an extra, 600 bowl system. Reloaders may use each bowl interchangeably for small or large capacity loads. 600 Bowl System is ideal for rock polishing or other hobbies requiring small polishing or deburring operations. Has a built-in sifter lid for easy sifting of cases and media at the end of the polishing cycle. Twin Tumbler features the Lyman Hi-Profile base design with built-in exciters and anti-rotation pads for faster, more consistent tumbling action.