Apex MB Irons are built for the best players in the game. It’s a beautiful classic blade shape with high performance grooves, remarkable feel, and a new weight design. • Tour Shaping and Design A classic shape and style, with a traditional, thin topline, refined sole, compact blade length and stunning chrome finish. • High Performance 20V Grooves Precision grooves are designed to promote the high level of control and consistent spin that muscleback players expect out of any playing conditions. The 20V grooves also stand out for reducing fliers from the rough to deliver even more control.