| model | material quality | Length (mm) | colour | Weight (g) | function | 3D |
| K257-1 | zinc alloy | 44 | black | 56.82 | hide | Download |
| K257-2 | zinc alloy | 60 | black | 82.61 | hide | Download |
| K257-3 | zinc alloy | 68.5 | black | 153.5 | hide | Download |
| K257-4 | zinc alloy | 93.5 | black | 303.68 | hide | Download |
| K257-5 | zinc alloy | 116 | black | 1 | hide | Download |
Positioning hinge
