| Type | Height | Weight | Stepping Width | Weight of loading |
| BLBT-15 | 1.5m | 12kg | 40mm | 100KG |
| BLBT-20 | 2.0m | 16kg | 40mm | 100KG |
| BLBT-25 | 2.5m | 20kg | 40mm | 100KG |
| BLBT-30 | 3.0m | 24kg | 40mm | 100KG |
| BLBT-35 | 3.5m | 28kg | 40mm | 100KG |
| BLBT-40 | 4.0m | 32kg | 40mm | 100KG |
| BLBT-45 | 4.5m | 36kg | 40mm | 100KG |
