STX SUP Stand up paddle board Fin Medium size (standard on new boards). It comes with the fin and key to lock it into place. If you have managed to loose or damage your fin then you need one of these to get back and riding again. They also fit many other paddleboard brands such as Naish just check the channel size and length.
- Fits all STX SUP boards
- 22cm high x 18cm long
- 22mm wide channel
- Suitable for any SUP with slide in fin system