Jeffrey de Zwaan is already well-known in the darts world despite his young age. Already 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 some successes since then. Due to these successes, Jeffrey is now getting his second Maestro Darts. This new dart is made of high-quality 90% tungsten quality, in addition to the Unicorn logo the engraved Cobra is an absolute eye-catcher of this dart. This new series is available in 23g and 25g as steel and in 20g as soft dart. The weight is guaranteed with a tolerance of +/- 0.1g. His dart is rounded off with Unicorn Gripper Shafts and his own ULTRAFLY flights.