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How easy to up and down stairs
Up and down (UD) Walker aids features design for walking stairs.
K/D structure/ reduce packing volume.
Installing LED light sensor at foot tube cap. The LED will light up when there is insufficient light
An extensible set of gas spring in the forefoot when up front long length will be shortened to the corresponding ladder. To keep holding the same level.
ST John Univeraity
New Taipei, Taiwan