supply of aluminum raw material used (alloy temper) confirming to straight cum stool ladder platform step ladder capacity 150 kg. , aluminum raw material used (alloy temper) confirming to straight cum stool ladder platform step ladder capacity 150 kg. rectangular tube, weather resistant, all steps and top rear horizontals are kn ee braced for additional support, non marking castor wheel provide higher mobility, holding handrail, large platform provides. trolley fabricated out of m. s channel. size-8 height and 9 steps. make : kalco/model k7024 or equivalent. [ warranty period: 30 months after the date of delivery ] ]