The carraige is 28 1/4 in long and the wheels are solid but fit into a track that moves the machine back and forth. The base has wheels that are angled in and there are two sets at each corner. Hard to discribe. It is a two piece setup with the carraige sitting on top of the base that has the angled wheels that move along the frame.
Last edited by Rose Marie; 06-19-2014 at 08:28 AM.