The True Ames Thruster's design inspiration and key elements include... taking everything we've learned about making glass on tri fins over the past 40+ years and rolling all of that into this design. The TA tri is another template from our in-house collection and is our version of the tried and true thruster design that was first popularized in the early 80's and has continually evolved since. These 3 fins are all the same size and feature a solid all-around profile made for all-purpose high performance surfing. Built for speed, increased drive, fluid turns, and attacking the wave with precision & control. Form | Balanced thruster template with medium rake and a clean, neutral outline. Function | Speed, drive, and control with a consistent, predictable release. Feel | Smooth, responsive, and controlled with confident rail-to-rail flow. Overall | A dependable, all-around thruster built for everyday performance. Construction | Solid Fiberglass, Flat Insides Finish | Raw - Sanded Finish Fitment | Futures Compatible, 6.5° Angle Side Fins SIZE HEIGHT BASE AREA Medium 4.53” 4.53” 15.43”²