Features:- Replacement 3 fin set
- Features Inside Foil Technology (IFT), hydrodynamic foil to the inside face of the fin increasing the efficiency of water flow over the fin- Adds lift & reduces drag- Less flex at the base of the fin for increased drive- Base: 4.37"-
Depth:4.55"- Area:14.76" squared- Sweep: 33 degrees You can modify your surfboards performance by changing the fins according to your style of surfing, your weight, & the kind of waves you surf on.