The Futures Fins Box Filler Plugs eliminate the voids left behind when you're not using all of your fin boxes. Futures Box Filler Plugs comes in size 3/4'', which fit standard Futures longboard side boxes. If you have a longboard with a 2 + 1 set up, try adding the 3/4'' Futures Box Filler Plug in your empty fin boxes to help you reduce drag and add flow.
The 3/4'' Fin Box Filler Plugs are only for filling side bites found on 2 + 1 longboards. Fin set ups can vary depending on shapers preferences, templates and materials used so it never hurts to double check the depth of the fin boxes you want to fill before ordering.
