These grips have “No Taper” technology which creates a more even grip pressure and a better putting motion. They also have a more clearly defined ridge on the reverse of the grip so you can repeat your grip more easily. The grips are equipped with a “Tech Port” so you can insert a counterweight into the grip. Pistol GT 1.0 has a classic pistol format, a diameter of 1.1” and weighs 85 grammes.