A99 Golf Grip King-12 Golf Traiding Aids Grip Trainer Righty or Lefty for #7 Iron Correct your clubface alignment, swing plane and swing tempo to achieve greater distance and accuracy. The lightweight and easy to attach A99 golf swing angle king encourages correct wrist motion. Combines the essentials of a proper grip and the feel of a full motion swing. Great for a complete warm-up. Helps buid golf musle memory Improves a golfer's swing plane Note: Left handed trainer is designed for left handed players only, and right handed trainer is designed for right handed players only. Attention  need special tool to change the rubber grip, commonly acquired at custom made golf workshop