Bought this on here and it made a big difference to buffeting issues with touring screen. Then I changed to a Givi screen and put this away and forgot about it.
It only fits upto 2016 bikes apparently and includes the fixings and 12mm sat nav bar which is handy cos it makes it easier to fit and allows space for sat nav and/or a number of GoPro.
The Palmer Products web site has all the blurb about how great it is.
Anyway send me £20 and I will pack it up and send it to you.