Used for rehabitation after my mother-in-law knee replacement surgery. With it, she is now fully recovered and don't need it anymore. Height adjustable: Back can be 74-82cm. Front can be 77-85cm. Brand is LIFELINE. Can dismantle for small volume storage if necessary by just unfastening 4-6screws. Self collect at Bishan or AMK. Thanks. Can free deliver if necessary.