Replacement Fin Key * Futures Fin Systems * Also works on FCS System * Assorted Colours * Includes 1x Key * Please contact if you require specific colour Futures Surf Fin Key comes in Assorted Colours and makes a great replacement or spare to keep in the car or a bag. A must have for any fin system including Futures and FCS. Grab a couple for your next trip, the last thing you want is to be caught short and not be able to change your fins or take them out when you travel.