| model | material quality | Length (mm) | colour | Weight (g) | function | 3D |
| K219-1 | carbon steel | 21 | silver white | 3.01 | fixed torque | Download |
| K219-2 | carbon steel | 21 | silver white | 3.01 | fixed torque | Download |
| K219-3 | carbon steel | 21 | silver white | 3.01 | fixed torque | Download |
| K219-4 | carbon steel | 21 | silver white | 3.01 | fixed torque | Download |
| K219-5 | carbon steel | 21 | silver white | 3.01 | fixed torque | Download |
Stop at will, can be positioned and stopped at any angle of 360 °
Smooth flipping, simple structure/easy assembly
Service life: 20000 times of opening and closing, torque attenuation of 20%
Torque hinge
