The Aviar Driver is made from the Big Bead driver mold. This is the same mold used for the KC and JK Aviar. GStar is a blend of Star that adds flexibility and even more grip. GStar is opaque like Star, but features a pearlescent sheen. Their allure is only surpassed by their beautiful flight. GStar discs have a smooth, gradual transition in flight and the same durability as our Star Line.