Yonex mens ezone xp golf irons in graphitepower breakthroughrevolutionary dual tungsten power dtp system delivers ultimate power outputthe ezone xp range features the yonex dual tungsten power dtp system an innovative engineering breakthrough that produces maximum power and distance the newly designed dtp system featuring tungsten in both the grip and club head works in conjunction with the lightweight shaftthe result is a swing that delivers an explosive power breakthrough with the s