Gain the performance advantage while playing Tommy Armour TA1 Irons. Designed to equip golfers with the perfect combination of distance and forgiveness, TA1 Irons feature a super thin, super-fast CS450 Maraging Steel Face with a Cup Face construction for faster ball speeds. The Progressive Set Design utilizes a hollow body construction in the long irons (4-7) and an undercut cavity construction in the short irons (8-GW) to enable balanced performance.