The first time I used SEMS I went into Wynn & Graff Supply in Knoxville. I plopped my butt on one of the stools at the front counter and told the man what I needed. When I asked him if it would hold up he advised me they had dyed the stools I was sitting on 3 years ago. I would never have realized they had been dyed. By the way, that was 1992 or there abouts. You know they saw a LOT of use.....