The Riccar C012-0400 is the clutch rubber pad holder for Riccar and Simplicity upright vacuums equipped with a rug/floor switch. The holder positions the clutch rubber pad within the height-selection mechanism, allowing the switch to engage correctly on different floor types. Replace when the holder is cracked or the clutch pad no longer stays in position during mode changes. Confirm your specific Riccar or Simplicity model has a rug/floor switch before ordering.