Includes the ProTop, a multifunctional top designed to make work easier for electrical-utility, heavy construction and residential jobs. Includes a nonconductive work tray, molded copolymer with practical handyman tool slots. Integrated bumper, soft non-marking/non-marring rubber tread protects the work surface. V-shape design with rubber tread allows the ladder to work against corners, poles and trees. QuickLatch provides easier method of securing fly base sections. Steel swivel safety shoe with metal shield. Outside slide guides. D-shaped rung for more comfortable standing. Mar-resistant. Lashing slots provide the option for lashing the ladder to the pole or tree. Dimensions: 1.187" rail depth, 14.688" (20PT-28PT) and 15.313" (32PT) base inside, 13.687"(20PT-28PT) and 14.312" (32PT) fly inside, 17.062" (20PT-28PT) and 17687"(32PT) base outside and 16.061" (20PT-28PT) and 16.686" (32PT) fly outside.