The d 100 irons utilize super lightweighttechnology to increase distance by achieving faster ball speedswith the same swing effort super light technology works and the results speak forthemselves these are the longest irons wilsonstaff has ever produced the d 100 ironsare engineered with ultimate performance enhancing technology forplayers who demand distance and accuracy with more weight removedfrom the shaft grip and club head these ironsperform with the right lightlarge thi