Keyboard Stand Specification:Color : BlackTube diameter : 2.5CMMinimum Height : 12.2 InchesMaximum Height : 39 InchesMaterial : Iron + Plastic + RubberLoad Bearing Capacity : 110 LbsKeyboard Bench Specification:Color : BlackSeat Thickness : 2.7 inchLoad Bearing unit : 340 lbs and 155 Kg The square tube size ：4020mmThe round diameter ：25mmHeight Adjustable : YesMinimum Height : 19.5 InchesMaximum height : 21.26"" inchesMaterial : Iron, plastic, leather, sponge, wood boardPackage Include:1x Keyboard Stand1x Keyboard Bench