MaterialHardcoat AluminumFemale ThreadNST (NH)Female Thread Size6"Swivel ThreadNST (NH)Swivel Thread Size2-1/2"Weight Lb4.5250ConstructionRocker LugSeamless aluminum extrusion, hardcoat anodizedAvailable OptionsOther configurations and sizes are also available. Consult Dixon for pricing and availability.NotePart numbers are generated using the following rule: "Swivel size to Rigid size"