A sled, sledge or sleigh is a vehicle with runners for sliding instead of wheels for rolling. It is used for transport on surfaces with low friction, usually snow or ice but any grassy surface is good when it isn't too dry. In some cases round river-washed stones make a good surface for sledges. Devices to be pulled across bare ground, such as a travois, are not generally called "sleds", although skids often are. Sleds are typically smaller and simpler than sleighs which are generally understoo… (More on Sled)