specification: 3520 x 2230 x 3650mm. bearings: made from german. main structure: high quality carbon steel & umbrella membrance & moulded aluminium. main pipe diameter/ thickness: 250 x 150mm/ 4.00mm. double powder coating: epoxy powder coating as the basic powder coating(50-80mm), the second one is powder coating with regular colors (90-140mm). exercise part: legs. shot blasting machine: physical rust removal can clean the pipe surface efficiently, improve the absorbability of powder coating as well as environmental protection. packing: epe first and them weaving sack.