Callaway Quantum Max OS Iron Set - Graphite - 5-PW, AW Shaft:Graphite - Project X Denali Silver 60 Each Iron face is made

Each Iron face is made of Super-TIX®-51AF Titanium

DUO SOFT delivers incredible overall performance with the premium soft feel players love

Thru-Slot Speed Pocket™ and a lightweight Carbon Crown

Quilted chest panel

high-strength maraging steel face wraps into the sole and crown to increase flexing and generate faster ball speed with a higher launch for longer carries

Callaway Quantum Max OS Iron Set - Graphite - 5-PW, AW Shaft:Graphite - Project X Denali Silver 60 Each Iron face is madeBlending Callaway's largest and most forgiving Quantum head shape with the company's premier speed and performance technologies, the super game improvement Max OS is engineered to maximize speed and launch conditions for golfers who struggle with consistency or those with a lower ball flight. The technology backing the performance packed Max OS begins with its 360 Undercut Cavity, including an advanced two piece construction with extreme perimeter