| There are mainly three kinds of Heavy Duty props: | |
| 1.Outer tube of 60mm diameter with inner tube of 48mm diameter (60/48). | |
| 2.Outer tube of 75mm diameter with inner tube of 60mm diameter (75/60). | |
| 3.Outer tube of 88.5mm diameter with inner tube of 75.5mm diameter (88.5/75.5). | |
| Type | Adjustable height (mm) |
| 3m | 1800~3000 |
| 4m | 2200~4000 |
| 5m | 2700~5000 |
| 6m | 3500~6000 |
