KO Steel Tip Darts, 24 Gram 90% Tungsten Darts with Case, Professional Dart Set If you are tired of fumbling around with your grip and feel like you are having trouble consistently holding and releasing your darts look no further. This set features the Perfect Grip Groove which will allow you to easily find a consistent grip without even looking at the dart. That consistency is the main difference between a pro darts player and good league or pub player. These 90 tungsten darts have been designed using input from profesional and amateur players with the hope of making a premium steel tip dart that any player could use and become more consistent. That makes these professional darts perfect for anly level of player. Each 90 tungsten dart set is match weighed to an industry leading +/- 0.05 gram weight tolerance. We offer a 30 day money back guarantee as well as a Lifetime Barrel Guarantee for all of our Amazon buyers. The K.O. Darts mission is to provide high quality darts specifically desinged to improve the consistency and performance of its players all at an affordable price. 24 gram Tungsten Steel Tip Darts with a Hard Plastic Drop In Case Specifications: 50 mm Barrel Length, 6.6 mm Barrel Diameter, 42 mm Shaft Length