Description from Futures.:

The F8 Legacy Series Thruster is a medium sized fin with a neutral template and balanced feel for all-around performance

• Template Category | Neutral (all-around, balanced)
• Construction | Honeycomb
• Size | Medium (145-195lbs)
• Ride Number | Balanced - 6.4

Specifications: 

              Side Fins    Center Fin   Rear Fin

Area      15.12          15.12            11.42
Height   4.56            4.56             4.56
Base      4.35            4.35              4.35
Foil        FLAT           SYMM           SYMM