1)high quality stainless steel treated pipe
2)reinforced central vertical tube provides better support force
3)specially designed expansion tube provides more convinence for adjustment
4)there's rubber tube inside so as to prevent from metal friction
5)anti-skidding rubber feet-pad with meatal gasket inside
6)foaming armpit supporting cover makes the user more comfortable
7)9 gears for height adjustment
8)height:S:105-125cm M:114-134 L:128-148
9)packing:carton
10)Material:Aluminum Alloy
11)Sizes:S,M,L
12)height adjustable
13)bottom non-slio rubber sheath