Mizuno T-Zoid Sure irons were designed to be the most forgiving stainless iron ever. The Mizuno T-Zoid Sure is the perfect combination of T-Zoid technology and stainless steel playability. The larger clubhead within these irons offers maximum playability and an increased sweet spot. The T-Zoid power bar is placed strategically behind the sweetspot for better feel and control and has been expanded horizontally to give you most solid feel…even for those "less-than-perfect" shots.