Lee Universal Case Collator fits on top of the Universal 5 tube case feed magazine, makes filling the tubes faster on the APP, Pro 1000, Pro 4000, Load-Master and Six Pack Pro presses. Case diverter prevents inverted cases and promotes quicker filling. Hole mask allows proper head down orientation of smallest pistol cases. Works reliably for the 223 Remington. Agitation ribs promote expedited tube filling. Nearly 40% greater capacity over our original case collator. Mfg: Lee Precision