STX Super Power U Unstrung Head - Worlds will collide with the STX Super Power Unstrung Head. This lacrosse head is the next generation Proton Power and follows its aerodynamic and streamlined design along with STX Forward Cant. A reinforced scoop design strengthens the scoop as well as the sidewalls. Additional holes allow for easier stringing of the head. Irresistible force or immovable object? Be both with the STX Super Power Unstrung Head. NFHS and NCAA approved.