TaylorMade Burner Plus Irons 4-AW Ultra-large, deep cavity for massive perimeter weighting Inverted Cone Technology for increased COR over a larger portion of the face Advanced perimeter weighting promotes extreme forgiveness on off center hits Multi-Functional sole thats wide and beveled makes it easy to launch and play Steel Shaft: Men's Burner 85 (Chrome, 85 grams, Parallel tip .370)