La description

A、High quality stainless steel treated tube; B、Reinforced central vertical tube provides better support force; C、Specially designed expansion tube provides more convenience for adjustment; D、There’s rubber tube inside so as to prevent from metal friction. E Anti-skidding rubber feet-pad with metal gasket inside; ； FFoaming armpit supporting cover makes the user more comfortable; G、9 gears for height adjustment. SizeS M Ltype Height（cm）：S:******5 M:******4 L:******8