| model | material quality | Length (mm) | colour | Weight (g) | function | 3D |
| K215-1 | carbon steel | 21 | silver white | 2 | fixed torque | Download |
| K215-2 | carbon steel | 21 | silver white | 2 | fixed torque | Download |
| K215-3 | carbon steel | 21 | silver white | 2 | fixed torque | Download |
| K215-4 | carbon steel | 21 | silver white | 2 | fixed torque | Download |
Stop at will, can be positioned and stopped at any angle of 360 °
Smooth flipping, simple structure/easy assembly
Service life: 5000 times opening and closing, torque attenuation of 15%
