Choose Flex: 5.5 Regular - 6.0 Stiff - 6.5 X-Stiff Uncut will be 46" and Adaptor Models will be Standard Length with Generic Grip Compatible TaylorMade models (SLDR, R1, JetSpeed, RBZ Stage 2, M1, M2, M3, M4, M5, M6, Sim, Sim2, Stealth, Stealth 2, Qi, the adapters fit driver and fairways) Compatible Callaway models (Mavrik, Rouge, Epic, XR 16 Drivers- these are driver adapters) Compatible Titlist models (TSi2, TSi3, TS1, TS2, 917D, these are driver adapters) TRUE TEMPER Compatible with/Replacement for PING models (G410, G425, G430 these are driver adapters) Compatible Cobra models (F9, Speedzone, LTDX, Rapspeed Drivers adapters) Message for length customization Project X Denali Charcoal CB Shafts (Choose Flex and Adaptor)-- Flex: 5.5 (Regular) - 6.0 (Stiff) - 6.5 (X-Stiff)-- Tip .335-- Note: All shafts with adaptors will be installed and gripped to standard playing length 45.5" (send message for custom driver length)-- All NO adaptor shafts will be uncut to 46", tip is .335-- Grip: A generic standard grip will be installed on each adaptor option