Product Overview: Cobra King F8 One Iron Set With Graphite Shaft Headlining COBRA’s 2018 iron lineup are the KING F8 and KING F8 ONE Length™ Irons featuring an all-new E9™ PWRSHELL™ Face Technology that boasts a 20% thinner forged face. An E9™ elliptical Sweet Zone™ construction promotes faster ball speeds across a wider area on the face, delivering unparalleled distance and forgiveness. Both models feature Carbon Feel Technology inserts that are strategically-positioned to deliver a soft yet solid feel throughout the set. New all Carbon Fiber construction medallions damp vibrations for exceptional sound and feel throughout the set. Features: Complementing the F8 ONE LENGTH Irons, Cobra is introducing the industry’s first-ever ONE LENGTH Hybrid. The KING F8 ONE LENGTH Hybrid features revised weighting and CG, an upright lie angle, and increased head weight to match the ONE Length irons.