Lee Universal Case Feeder automates the case feeding operation on the Auto Breech Lock Pro, Pro 1000 and Load Master. Ships with four clear case feed tubes, case slider block, riser block for taller cartridges, and small and large feed plate. Increases production during the reloading process. Pro 1000 press owners, your existing z-bar and bent z-bar will work with this new universal case feeder. Load-Master press owners, your existing crank slider is compatible with the universal case feeder. The universal case feeder is a direct replacement for the small, large and rifle case feeders, You can substitute the new case feeder for all three of the previous case feeders