The Grays Nano 7 features new Nano technology which improves stick strength and stability. You will notice improved feel and handling when control the field hockey ball. The Nano 7 also offers greater consistency when hitting the ball. The Nano technology is the combination and integration of the carbon nano tubes which are put in the resin mix. When the resin mix with the nano tubes is combined with the Grays composite fiber matrix you will notice it increases the unidirectional qualities of the sticks performance.