From Trent Palmer (shared on Printables)… This is a model designed by Harris Taylor for my Kitfox to hold the parking brake lever in the “OFF” position on my Beringer Parking Brake lever. It simply slides over the lever and bolts through one of the holes in the lever itself it then just uses the notch that the lever moves in to hold the lever in the “OFF” position.  I used a metric socket head screw to hold it on but we also designed a bolt and nut option that you can print as well if you don't have any hardware sitting around.