Brand new Shimano Dura-Ace Di2 R9150 right shifter.

The Dura-Ace Di2 9150 shifters feature an ideal ergonomic shape that is comfortable in the hand and has been updated to be more precise and more adaptable than previous editions.
E-Tube compatibility means that the function of the shift paddles can be customized to suit the rider. The shift paddles now feature a more defined “click” and have been extended in length for more confident and comfortable shifting.
The 9150 shifters now include Synchro-shift technology that automatically moves the rear derailleur when the front ring is changed or moves the front chainring with the rear shifts to optimize chain line and drivetrain efficiency.

Specifications:

Brand new
More control and confidence in race conditions
Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles
Lightweight
Carbon composite plastic material hood
More defined click feeling and ergonomic shift lever position
Customize the shifts to suit your riding style
11-speed Di2
For rim braking
Right shifter only
Weight: 460g (pair)