Steel Curtain is a steel hypercoaster located at Kennywood amusement park in West Mifflin, Pennsylvania, United States. Manufactured by S&S – Sansei Technologies, the coaster reaches a height of 220 feet (67 m) and features nine inversions, including a 197-foot (60 m) corkscrew considered to be the world's tallest inversion. Themed to the Pittsburgh Steelers NFL football team, the roller coaster is named after the Steel Curtain, the nickname for the Steelers' defensive line during the 1970s.