On a "rocker" ski, the nose, and sometimes the tail, comes off the ground much sooner than with a cambered ski. This moves the points of contact towards the centre of the ski. The surface of the ski in contact with the snow is shortened: they have better handling and more floatation on soft snow. When leaning into turns, the edge length offers more edge grip on hard snow. The longer the rocker, the better the handling of the ski.