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A special walking stick which can be turned to a shopping cart with four wheels and a folding plastick bag. It benefit the old especially the elderly women who need a crutch to walk but want to go outside nearby for shopping herself.
It can be a crutch, and easily can be changed to a little shopping car. It is called WALK AND BUY, WALK AND BUY is made in special materials which are light to carry.
China Agricultural University