High quality aluminum tube with aluminum treatment on the surface;
Reinforced central vertical tube provides more supporting force;
Anti-skidding rubber feet-pad with metal gasket inside makes it more durable;
Rubber tube inside prevent it from metal friction;
Specially designed expansion tube offers more convenient adjustment;
Sponge foaming armpit support and handle make it more comfortable to use;
9 Gears for height adjustment (gear distance: 2.5cm).

Size: S M L  Height(cm):
S:94-114
M:113-134
L:134-154