At 09:09 PM 6/18/2001 -0400, Bethany K. Dumas wrote: >What do you call those vertical entities (some are very heavy-duty - for >moving refrigeraors and such) that allow you to move heavy loads >easily? When I worked in warehouses (late '60s, MN), we called them "two-wheelers". Tom Kysilko Practical Data Services pds at visi.com Saint Paul MN USA