New GelStx Weighted Training Driver 360 CC Titanium Club Reg Flex Right Hand. GELSTX weighted training golf clubs are designed to maximize your training and improve your game all while hitting the golf ball. Using high quality Fujikura golf shafts infused with our patented Stick-Gel technology we’ve created a golf shaft 2 times heavier than your standard playing shaft. Increasing your ball speed, swing speed, and improving your swing tempo while hitting the golf ball is what sets GELSTX apart.