"Extraordinary technology and player performance combine to form the Tommy Armour 845 Hybrid. The 845 Hybrid equips golfers with ultimate distance and maximum forgiveness to honor the iconic Tommy Armour brand name. Patent-pending Inertia technology features a wrap-around carbon crown design that optimizes weight placement for longer and straighter shots. A high strength, 450 Carpenter Steel face combined with variable face thickness (VFT) increases ball speeds for longer distance.Revolutionary Inertia technology contains a wrap-around carbon crown design that allows weight to be repositioned for a deeper CGInertia technology helps square the face at impact for longer and straighter shotsHigh strength, 450 Carpenter Steel face features a variable face thickness (VFT) design that increases flexing to produce longer distance on off-center hitsスペックDesigned to equip golfers with incredible distance and maximum forgivenessContains revolutionary forgiveness technology to help honor the iconic brand nameUST Helium Black shaft provides maximum distance with improved shot dispersion in a lightweight designShaft: UST Helium Black Graphite ShaftGrip: Lamkin Crossline 360 Grip"