Lyman's stainless steel pin transfer magnet is the answer for separating our cases from the media pings used in rotary tumblers. Simply pass the magnet over the mixture of case and pins and the pins will be pulled out and grabbed by the magnet. To release the pins just pull up on the handle. The large diameter strong magnet will collect many pins in a single pass. Fast convenient and simply to use! A perfect companion for your tumbler.