Nauticus Trim Plate Retractor Kit And Protroller Kit. The PR500 Bracket assembly allows Smart Tabs to be set in two different positions without the use of any additional tools. When the bracket handle is in the "Down" position the Smart Tabs will function as trim tabs. When the bracket handle is in the "UP" position Smart Tabs will be fully retracted. The brackets are ideal for use when rack storing a boat beaching a tender or in very shallow water conditions for example. Note: For use with any Smart Tabs Smart Tabs SX or Mobster Tabs system. Kit contains to two adapters. (The PR500 replaces transom bracket #TB1007) Specifications for Nauticus PR500 Trim Plate Retractor Kit And Protroller Kit: Manufacturer: Nauticus Color: Black Package Contents: Nauticus PR500 Trim Plate Retractor Kit And Protroller Kit Nauticus PR500: Trim Plate Retractor Kit And Protroller Kit PR500