The single longboard fin JUST 9.75“ - Fiber Black is a model dedicated to For longboard use. A very well balanced fin for those looking for versatility, between powerful turns and cruising. The long base offers excellent drive while the narrower tip facilitates "rail to rail" transitions. This fin will offer to your longboard the right Pivot/Rake combination. For those seeking stability during noses and a bip of "Loose" in the turns.