The SuperStroke Zenergy Tour 3.0 17" is 6.4" longer than the standard grip. This gives you the option to use it for armlock-putting by locking the grip against your forearm. In addition, the grip can act as a counterbalance option, resulting in a more consistent swing by moving the weight above the hands and raising the balancing point on the putter. For every grip you buy from Dormy Golf, the grip tape is on us!