Hornady CASE ACTIVIATED POWDER DROPThe new and improved Case Activated Powder Drop has been re-engineered with quick change-overs in mind. The retainer spring has been re-engineered for smoother function than previous models and the powder drop only dispenses a powder charge when a case is present. Works with the Lock-N-Load AP or other progressive presses that use 7/8" - 14 threads.Powder Measure not included