... oxidized surface, and 5levels in height adjustment 4.4-Feet walking Stick, aluminum alloy tube, oxidized surface, wooden handgrip and 10levels in ... , oxidized surface, folding, 6 levels in height adjustmentAluminum crutch with high quality aluminum alloy treated on surface. Sponge foaming handle.Anti-skidding ... inside, which make it more durable. gears for height adjustment. walking stick factory