Length:1.6--2.9m  1.7--3.0m  2.0--3.6m   2.2--4m  2.5--4.5m 2.5--3.95m 3.0--5.0m

outer tube od:60mm,56mm, 48mm   inner tube od:48mm,40mm 

thickness:2.5mm,2.0mm,1.8mm,1.6mm  plate:120*120*4mm surface:painted, powder coated , galvanized