of the top rail designed to facilitate the removal of snow and ice during skiing the front snow cleaning surfaces 135 push the snow forward away from the binding the front lateral surfaces 140 assists in pushing the snow from the top front surfaces downward and laterally to the lateral snow cleaning surfaces 125 the lateral snow cleaning surfaces 125 are angled to push snow away from the binding laterally and thus out of the forward movement of the ski the top surfaces 130 are designed to break through the compacted snow and ice and assist in pushing the snow laterally to the lateral surfaces 125 or completely away from the binding in accordance with another embodiment the top rail 053 slides longitudinally along the bottom rail 075 and is fixed in place at installation at any position along the length with the rail nut and screw system the bottom rail 075 has a wedge type cross sectional geometry that mates with a similar shape of the rail nut 076 as shown in fig5 when the top rail screw 077 is tightened it wedges the rail nut 076 against the bottom rail 075 and rigidly holds the top rail 053 in the chosen position the bottom rail 075 is rigidly fixed to the ski by the bottom rail screws 078 or other mechanical fastening means the top rail 053 can slide along the longitudinal axis of bottom rail 075.