This piece goes on the inside of your saddle bag so that you can screw the Varia mount onto the outside for a nice, clean look. I cut two small holes in the saddle bag using a pocket knife and used the screws that came with the Varia saddle mount to attach it. I used a small amount of blue loctite on each bolt for a bit of extra safety.
The saddle bag I'm using is the Lezyne M-Caddy.
The author marked this model as their own original creation.