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/ XL Height(cm): S:100-120 M:110-130 L:120-140 XL:130-150