This upgrade kit is for our customers who have previously purchased one of our original rotary attachments and would like to upgrade the adjustable rollers for ease of setup and increased work flexibility.  
Included is:
  -  a 400mm Aluminum extrusion drilled and tapped (this is approx. 4" longer than the original that came with our V1 attachments)
  -  completely redesigned adjustable roller section.  This enables quick length and height changes with the turn of a thumbwheel.  completely tool free when adjusting height and length.