Drivers by TaylorMade. Details:Building on the speed producing success of the original 60X Carbon Twist Face that optimized energy transfer for fast ball speeds, the new face design in Stealth 2 featuRescue an advanced version of Inverted Cone Technology (ICT) to help maintain ball speed on off-center strikes and increase forgiveness. It weighs 24g (2g lighter than the original Stealth face) and is designed to have an expanded COR area for a larger sweet spot and boosted performance across the entire face.