Yup, tres is right, gauge wheels. It's a light duty blade that I mostly use for just snow, and I feel better with those wheels there, keeps from marking up my pavement too much. I made them myself with some casters I bought from Andersons and some long carriage bolts. If anyone is interested, I can take a picture of them for details. They've worked well for two winters now, and I think i've got something like $5 bucks total invested in them... /forums/images/graemlins/smile.gif