Tempered aluminum rungs are hydraulically double crimped to aspect rails and totally serrated 4 additional heavy responsibility outdoors slide guides secured to high of base part with four rivets per information. Swivel Security Footwear – Heavy responsibility plated metal footwear with thick rubber tread. Full I-Beam – Aspect rails are additional heavy responsibility 3″ I-beam extrusions for max power. QuickLatch geared up runglock gives simpler methodology of securing fly and base sections when prolonged.