Darts game manufactured by Unicorn, World Champion Black Brass range, darts designed by Bob Anderson. .What. The Dart consists of 1 set of 3 World Champion Black Brass darts, 1 set of 3 gripper rods, 1 set of 3 75 micron black brass feathers and 1 set of 3 2ba 4mm points. .What. Length 47 mm. Diameters 8.5mm