| Model | Y-E17C |
| Extended length(m) | 4.6 |
| Folding length(m) | 2.2 |
| Appearance size(cm) | 140*61*20 |
| Height(kg) | 15.5 |
| Safety load(kg) | 150 |
| Packing number of 40 feet high cabinet(pcs) | 500 |
| The ladder one(cm) | 30.8 |
| The ladder.two(cm) | 59.5 |
| The ladder.three(cm) | 88.5 |
| The ladder.four(cm) | 116.5 |
| The ladder.five(cm) | 145 |
| The ladder.six(cm) | 175 |
| The ladder.seven(cm) | 204 |
