| model | material quality | Length (mm) | colour | Weight (g) | function | 3D |
| K204B-1-L | sus304 | 20 | silver white | 32 | fixed torque | Download |
| K204B-1-R | sus304 | 20 | silver white | 32 | fixed torque | Download |
| K204B-2-L | sus304 | 20 | silver white | 32.11 | fixed torque | Download |
| K204B-2-R | sus304 | 20 | silver white | 32.11 | fixed torque | Download |
| K204B-3-L | sus304 | 25 | silver white | 52.21 | fixed torque | Download |
| K204B-3-R | sus304 | 25 | silver white | 53.01 | fixed torque | Download |
It can maintain any stop specification at any angle, and the reciprocating torque within the movable range is constant.
