The Shimano SW-R600 climbing shifter is a useful Di2 accessory that is attached to your handlebars allowing you to shift without having to change hand position, very convenient and effective, a nice complement to your Di2 group.
Compatible with Dura-Ace 9070, Ultegra 6770 and Ultegra 6870 Di2 systems, the E-tube wire measures 265mm in length, a set of zip ties is provided.
The unit is pretty much brand new, just tested to see how they work and removed when I changed the handlebar tape.
Local transaction in person with cash or Venmo.
Thanks for looking