You will receive a complete custom iron set which will include the 4, 5, 6, 7, 8, 9, PW + SW. The Power Back T11 oversize irons are designed with a deeply undercut cavity and a recessed weight that moves the center of gravity farther behind the face for optimal launch angles with enhanced forgiveness. The The Power Back T11 irons have a traditional look with all the enhancements of the latest technology.