Thank you for viewing. I purchased this for my mother when she was hospitalized, but it became unnecessary after she was discharged and her nursing care certification progressed. This is a lightweight aluminum folding walker. The stoppers engage when weight is applied. - Type: Folding walker - Material: Aluminum - Wheels: 2 front wheels, 2 rear wheels - Height adjustment: Adjustable in 5 stages (approximately 76.5cm to 87.5cm) - Handle: Handle with grips