CRL Duranodic Bronze Aluminum LK610 "H" Bar - 12 ft long Available in Many Attractive Finishes Made from Highest Quality 6063 Alloy Use Either D650 Nylon or D649 Steel Wheel Assemblies Works with D650 or D649 Rollers For 3/16&quot; to 1/4&quot; (5 to 6 mm) Thick Glass