Unicorn Gary Anderson Darts - Steel Tip - The Flying Scotsman - Duo - Blue & Gold - 21g. Each set of these 90% tungsten darts feature a duo titanium coating in both blue and gold, with a micro ringed section at the rear of the barrel and a wide ring section at the front. They include some duo ultrafly flights, gripper shafts and some volute points. Unicorn Gary Anderson Darts - Steel Tip - The Flying Scotsman - Duo - Blue & Gold - 23g. Each set of these 90% tungsten darts feature a duo titanium coating in both blue and gold, with a micro ringed section at the rear of the barrel and a wide ring section at the front. They include some duo ultrafly flights, gripper shafts and some volute points.