Jeffrey de Zwaan is already well-known in the darts world despite his young age. In 2012, at the age of 16, he won the World Youth Masters. The Black Cobra has been a professional since 2015 and has celebrated several successes since then. Due to these achievements, Jeffrey is now receiving his second Maestro Darts. This new dart is made from high-quality 90% tungsten. In addition to the Unicorn logo, the engraved cobra is a real eye-catcher of this dart. This new series is available in 23g and 25g as steel darts and in 20g as a soft dart. The weight is guaranteed with a tolerance of +/- 0.1g. The dart is completed with Unicorn Gripper Shafts and his own ULTRAFLY Flights.