| Model | Y-E22A |
| Extended length(m) | 5.8 |
| Folding length(m) | 2.8 |
| Appearance size(cm) | 171*68*20 |
| Height(kg) | 20.8 |
| Safety load(kg) | 150 |
| Packing number of 40 feet high cabinet(pcs) | 374 |
| 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) | 173.5 |
| The ladder.seven(cm) | 202.2 |
| The ladder.eight(cm) | 231.5 |
| The ladder.nine(cm) | 260 |
