[High Quality] The Z- Oldham coupler of 3d printer is made of self-lubricating brass, CNC machining,high precision, good finish and long service life. [Improve printing quality] If your lead screw rod is not straight, the printing may have layer misalignment problem, Oldham coupling can reduce the vibration caused by the bending of the lead screw and thus improve the printing accuracy. It has high torsional stiffness, protects driven parts and support bearings. Adapt to large radial misalignment. Compact size, low moment of inertia, easy to install and disassemble. [Wide Compatibility] Compatible for 8mm lead screw rod, fixing hole is M3 and two holes distance is 16mm, such as for 3, for 3 Pro, for , for 3 S1/Pro, -10, -10S, CR10 S4, S5 etc.<br><br>Color:Gold Material:Brass<br><br>Package Contents: 2 * Z- Coupler<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.