SPECIAL JOY golf shafts are categorized into three distinct families, all shafts featuring our proprietary FreeFlex (FFT) and Carbon Bending (CBT) technology to provide exceptional performance for golfers of all skill levels. FreeFlex SPECIAL SERIES ultralight weight shafts are geared for golfers with slow to average swing speeds wishing to increase both distance and accuracy, with high launch and less spin. FFT makes it possible for us to vary and combine the three aspects of weight, flex, and torque in any combination. Using this incredible technology, we have perfected a shaft that is free of flex designation, and can be used even by 120-plus mph golf swings with a smooth swing. Caption FreeFlex ORIGINAL SERIES carbon shafts are ideal for golfers of all skill and speed levels. Driver shafts range from 45~70 grams and come in varying flex (cpm) and torque to provide exceptional feel and performance from tee to green. The Original series is the foundation of the FFT technology, and provides the performance benefits of a stiff flex in a softer feeling shaft. Mid-to-low handicap golfers and pros love this series for its stabilty, feel, and penetrating shot shaping capabilities. MetaFlex CBT SERIES features our latest carbon bending tech to create firm, stabling feeling shafts for the faster swing speed golfers in excess of 100~125 mph. The CBT tech is incredible in its ability to create such feeling of strong torque and stiffness for the golfer, but the actual measurements remain light, flexible, and soft. CBT tech offers a unique contradiction of actual shaft spec versus actual feel of the shaft, which seem improbable but true. Due to this never-before seen technology, MetaFlex shafts offer the best of both (soft & firm) worlds, and must be tried to be believed.