Wider can be better, and the Synchro is designed to let you ski the course on take on open waters in equal style. The O'Brien Synchro Slalom Waterski is manufactured with the latest and strongest materials and manufacturing techniques. The stable ski retains its famous tunnel that carries more speed into turns. More rocker for smooth, forgiving turns. 45° bevels. Adjustable Carve fin can be moved forward and back. For intermediate to pro skiers.