how to install a box fin
Step 1:Separate your fin and your screw plate.
Step 2:Place the fin plate into the centre of the box using the locator and slide it to the front of the box.
Step 3:Insert the fin tail (end first) into the centre of the box using the locator. Slide the fin to the back of the board whilst holding at a 45 degree angle.
Step 4:Push down on the front of the fin and place the fin screw through the fin hole and then the fin plate.
Step 5:Tighten fin screws for a firm fit.