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By certification 
1) The width betweent two wheels: 64cm
2) The width of folding: 29cm
3) Seat(backrest) width: 46cm
4) Wheel’s diameter: 60cm
5) Castor’s diameter: 20cm
6) Seat Height: 52cm
7) Total Height: 98cm
8) Total width: 110cm
9) Seat deep: 42cm
10) Backrest height: 45cm
2) The width of folding: 29cm
3) Seat(backrest) width: 46cm
4) Wheel’s diameter: 60cm
5) Castor’s diameter: 20cm
6) Seat Height: 52cm
7) Total Height: 98cm
8) Total width: 110cm
9) Seat deep: 42cm
10) Backrest height: 45cm