Harrows' signature Clic system in blue. Shafts are available in a variety of lenths and sizes to fit to the player's personal playing preferences. Flights are stable and will not come off during play, and they will also rotate if contact is made from the following dart. Each of the pieces of the Clic system are all made from extremely durable, tough, high-tech materials with flexible shafts. Every flight design is based on 90 degree angles.