material:PP and metal tube package:color box packing:53.5*43*42cm/6pcs 14/16kgs Remarks: 1) Adjusts in three different ways: to your body size, to the activity you''re doing, and the way you are sitting 2) The legs are adjustable up and down 54-76cm range 3) Assembles in just two minutes without any tools or fasteners 4) Folds into semi-folded position for easy storage