JAWS MD5 Wedges are crafted by Callaway Chief Designer Roger Cleveland with total performance: premium shapes, striking finishes, outstanding feel, unique versatility and exceptional spin. Features: New JAWS Groove Design with Groove-In-Groove Technology for Exceptional Spin, Precisely Shaped for A Beautiful Look and Extraordinary Feel from 8620 Mild Carbon Steel, Callaway's Most Comprehensive Wedge Line-up, Optimized Head Progression, Premium Components for Premium Performance.