. Main tube : 40*80*t2.0 & 40*120*t2.0 . Material : Fraxinus mandshurica wood board, 8k Stainless steel mirror, Main frame : t2.0 Steel pipe . Dimension ( mm ) : 1960*1320*140 . Packing Size : 2100*1200*170 . Maximum load-bearing capacity : 100Kg . Left & Right Gears : 1-19 gears . Counterweight : 2,5Kg/block, 40Kg on one side, 80Kg in total