(drift board (freeline skate) by the United States first extreme sports Ryan Farrelly in 2004 the invention, first inspiration from alpine skiing sports, then drift board turned into the land of the skiing. Drift free board minutes or two board, respectively on the L and R, mark, or so can not be mixed up. Drift board features: use of light weight, small volume, easy to carry, you can take it to any place. Want to go you go, want to slip and you slide. Two wheels is independent, one foot. On two feet a swinging and moving forward, not need foot slip, can do all kinds of tyre fancy change action. Machine speed to free change direction, free, can spin around.) 来自有道词典。