The Photon is the first model to debut in MVPs 21.5cm class. This speed 12 equivalency driver provides stable-overstable flight with the extra oomph provided by the larger,more floaty diameter. Proton plastic is MVPs clear candy blend. It is super durable with outstanding grip. Features: Stable Fairway Driver Durable Proton Plastic Unique 2-piece construction Stability Rating: 0.5 First driver design from MVP Disc Sports