Shock Relief
T
he Sims Shock Relief Plus reduces up to 75% of the vibration that travels up the shaft and into the hands of a golfer. The new insert is made from a lightweight elastomer featuring a unique patented shape that fits into the grip-end of the shaft and has minimal effect on swing weight. Shock Relief can be used in both steel and graphite shafts and is available as an aftermarket product.
The company:
http://www.powerbiltgolf.com