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Model  | Step  | Open size(cm)  | Folded size (cm)  | Maximu pedal heightm (cm)  | Pedal width (cm)  | Pedal depth (cm)  | Weight (kg)  | Packing size (cm)  | ||
| W | D | H | ||||||||
| HBDB-01-03 | 3 | 48 | 74 | 116 | 48*17*127 | 87 | 33 | 13 | 5.0 | 50*19*129 | 
| HBDB-02-04 | 4 | 52 | 89 | 144 | 52*17*158 | 115 | 33 | 13 | 6.2 | 54*19*160 | 
| HBDB-03-05 | 5 | 56 | 104 | 173 | 56*17*188 | 144 | 33 | 13 | 7.3 | 58*19*190 | 
| HBDB-04-07 | 7 | 64 | 135 | 230 | 64*17*249 | 201 | 33 | 13 | 9.8 | 66*19*251 |