Contaminating your primers with oily hands can sometimes lead to a hazardous load. The Lee Safety Prime eliminates the need to touch them at all, or at least until they are safely loaded into the brass and is a natural upgrade for an Lee press made after 2006 that feature the Lever Prime System (LPS). A simple click and a primer is fed and ready to seat. Fits: Lee Presses made after 2006 that have the Lever Prime System (LPS) Notes: Lee Auto-Disk Powder Measure Riser (Item# 114-080) is required if using a Powder Measure and the Safety Prime on the press at the same time and must be purchased separately