STX Lacrosse Surgeon 10 500 Unstrung Head Lacrosse Head, White Meets NCAA rules only Designed specifically to maximize ACP technology, which maintains head shape in all climates, and allows for a lightweight and strong head New design is 10% lighter than the original Surgeon 10 HD SR15 WE XX/BOM Stiff, pointed scoop with aggressive "smile" helps define channel for increased accuracy Contoured throat with newly added texture for enhanced control while cradling