Pulleys are made of aluminum and are fixed on a frame made of galvanized steel. Pullers is supplied with a slit running with a layer of neoprene.
The most commonly used models:
| MODEL | A | B | C | D | E | F | G | H | Load | Weight (Kg) |
| CAS200 | 26 | 16 | 50 | 250 | 145 | 482 | 330 | 175 | 800 | 7 |
| CAS402 | 40 | 20 | 68 | 400 | 186 | 850 | 520 | 365 | 10000 | 20 |
| CAS602 | 40 | 20 | 68 | 650 | 186 | 1052 | 775 | 315 | 10000 | 29 |
| CAS802 | 40 | 20 | 68 | 800 | 186 | 1157 | 880 | 315 | 12000 | 33 |
