BULL’S Stone Darts – Steel Tip – 90% Tungsten – S1 – 23g. The Stone Series impresses with its numerous and varied grip zones, providing the perfect solution for every grip position. Made with 90% tungsten, these darts ensure optimal balance and durability. Players have the freedom to grip the dart wherever it suits them best, while enjoying excellent hold and control. The front section of the barrel stands out with specialized grip patterns that offer maximum hold, preventing slippage even during intense gameplay.