Kastaplast K1 Stal Fairway Driver Golf Disc (Individually Listed)The Kastaplast Stal is an overstable fairway driver and is named for its toughness. Stal, the Swedish name for steel, was once a common solidier's name. This tradition was started in the sixteenth century when the Swedish military named their soldiers. Stalmannen is the Swedish name for Superman! So with steel built right into its name, you can see that the Stal is one tough disc golf driver! Manufacturer's Flight Ratings: Speed Glide Turn Fade 9 4 0