They are "Ken Sean" brand el cheapos I found on clearance at local dealer...retail was $15.95 each.. I think I paid $20 for both if I remember right.
Just wanted to see if I liked them....so far so good.
Drilled and tapped 8mm hole, same size as expansion bolt for the rubber insert.
Had to shorten one bolt and saw off the end of the mount for the left grip.
The left plug was flush with the end of the bar, but the right one was inset about 1/2".