6600-AA series super heavy duty fiberglass 2-way step ladder. Extra heavy duty non-conductive C channel side rails in right visibility safety orange. Wide aluminum top with extra-thick brackets for strength and durability. Wide 3 inch slip-resistant serrated aluminum steps for safety climbing. Inside spreader arms complete with wrap-around sleeves that strengthen spreader-to-rail connection and protect spreader arms during storage/loading/transit. Each step is quad braced with Zinc coated steel diagonal braves providing incredible strength and stiffness. Extra large PVC rubber safety boots are heavy duty and proved increased rail protection and slip-resistance. *Special Duty - Manufacturer tested to 375lb.