This is a shaft compatible with the Tensei Hybrid 80s Callaway old sleeve, AI Smoke, Paradym, Rogue ST, etc. I ordered it and it arrived, but I decided to use another utility shaft, so it has only been swung once on the driving range and is in excellent condition. It has a straightforward flex that is universally appealing, so please consider it if you find the stock shaft lacking. I am open to questions and price negotiations, so please feel free to contact me if you are interested.