The belt contact area is made from ultrahigh-molecular-weight polyethylene for a low coefficient of friction. The underlying materials are made from premium-grade, 55-Durometer rubber and the heaviest aluminum support channel available. They come in 48 and 60-in. lengths, complete with mounting hardware. The 48-in. bars have four-bolt assemblies, and the 60-in. bars have five-bolt assemblies.
Holz Rubber Co. Inc., 1129 S. Sacramento St., Lodi, CA 95240, (800) 285-1600, holzrubber.com