BULL’S Challenger Darts – Steel Tip – 90% Tungsten – Michael Unterbuchner – 24g. The Challenger Dart is an exclusive reward for every BULL’S player who demonstrates exceptionalperformance. Made from high-quality 90% tungsten, this dart is ideal for supporting player development.Designed in close collaboration with Michael Unterbuchner, the dart meets his individual preferences and requirements. Weighing 24g and featuring a straight barrel, the dart offers excellent throwing stability. The three ring grip zones in the middle and rear sections, along with the nanogrip at the front of the barrel, ensure optimal hold and accommodate various throwing styles.Additionally, the rings in striking purple and pink add a unique and attractive aesthetic to the dart.