For instance, if you have 2 points left, you must hit a double-1 to bring the score down to zero. From 18 points, a double-9 would work. For instance, there is no possible double out from 19, so a way to finish would be to throw a single-3 first, reducing the score to 16. The game of 301 is different, however. Each players scoring begins with the score of the first dart that hits a double.
Flights are the fins or wings found at the back of a dart.
Another benefit of this type of flight is that a Soft Flight will often flex out of the way if another dart hits it. These flights are available in hundreds of bright, attractive designs. The layers are permanently sealed together by heat during manufacture. This is desirable as it reduces deflection and allows tight groups. Hard Flights were originally made of a clear plastic, which resulted in fairly dull colors in printed designs.