The two True Blue Belts I purchased for my older Simplicity snowblower fit perfectly and should keep me going for another 10 years or so. The belts that came off were also purchased at Jack's Small Engines (12 years ago) and were in surprisingly good shape. I changed the belts to make sure my snowblower gets me through another New England winter. I'm very appreciative that Jack's Small Engines carries parts for older snowblowers like mine. Service is always fast and efficient.