FCS FUSION FIN BOX - rail or side single box 5 and 9 degrees

FCS FUSION FIN BOX - rail or side single box 5 and 9 degrees (not sets - that's FCS Fusion Fin Box Set or Center)

FCS Fusion Fin Box inserts: 5 degrees and 9 degrees one rail box only (These can be installed on either rail/side.)

Surfboard FCS fin box inserts.  Build or repair your surfboard your way. This is how to keep on using your traditional FCS fins.  If you like them; you like them!