Cobra Limited Edition S3 Chrome Finish 4-GW Steel Regular Flex - Right Handed E9 Face Technology - A new, advanced system creates a larger Sweet Zone for increased distance, accuracy and forgiveness. Multi-material Construction - A new hidden internal polymer topline and full cavity TPU (thermoplastic urethane) combine to optimize weight distribution and dampen vibration for superior feel and distance. Stepped Crescent Sole Design - A versatile mid-width sole narrows in the toe and heel to provide superior turf interaction, promoting more consistent distance and accuracy Steel shaft made exclusively for Cobra by FST, makers of tour proven KBS Steel Shaft Lamkin R.E.L Ace 3GEN grips