Carbon Tech Carbon Fiber Reed Set - HT 366-HT Boost performance and power Reeds are available in three types of stiffness - LT (low tension) for good bottom-end and mid-range power, MT (mid tension) for added mid-range to top-end power and HT (high tension) for pro-level high-rpm power Made from the best aerospace materials, does not require changing reeds for every race Average reed life is one racing season minimum