Made of high-strength steel and hot-dip galvanized for corrosion-resistance. No. 815880UPC: Rod Diameter: 5/8″, Length: 8′, Material: Galvanized Steel, UL Listed: No, Pkg Qty: 1 No. 815860UPC: Rod Diameter: 5/8″, Length: 6′, Material: Galvanized Steel, UL Listed: No, Pkg Qty: 1