... in height adjustment 5. Armpit Crutch, Aluminum alloy tube, adjustable in height, L, M, S size 6. Multifunctional Crutch, Aluminum alloys tube, oxidized surface, and ... , oxidized surface, folding, 6 levels in height adjustmentAluminum crutch with high quality aluminum alloy treated on surface. Sponge foaming handle.Anti-skidding ...