Two tread mobile steps. Mounted on retractable spring castors to enable the steps to be easily moved into position. Double handrails are included for increased operator safety. Ribbed rubber mat treads (approx 3mm) are both glued and fastened to the steel tread to provide extra adhesion. 12 months warranty. Steel. Weight: 12.5kg. Platform height: 545mm. Tread size WxD: 380x180mm. Platform tread size: WxD: 380x285mm. Overall size 690x575x1085mm.