quick-release folding mechanism – Folds instantly. Compact, lightweight, easy to store or bring on the go. Product is fully assembled. easy to assemble- Only need 3 steps to assemble, come with toolkit and user guide, very easy to assemble. resistance control - Adjustable tension knob to control the level of resistance and workout intensity. safe stable - Non-skid ribbed rubber feet provides traction and stability on any floors/tables/surfaces. Helps peddler from sliding during therapy. Portable mini size - saves space and can be used under desk