... 5.8mm, 4.3mm,;3.2mm. 2) The handles and posts are made of carbon steel, stainless steel. ... The tube diameter:25.4mm, and thickness: 1.2mm. 3) Surface treatment: Chroming, ... many places. The metal material is dust free, and can easily adjust the height. It is also ... 4183010.911.9183011.812.97629146.8Material:wire,sheet and perforated sheet,carbon steel or stainless steel Customization ...