Adjustable X-axis timing belt straightening tensioner, you can adjust the belt freely treatment: anodic oxidation. Fine workmanship, wear and resistance. Wide range of applications: 3/ 3 Pro/ CR10 / CR10S/CR10 S5 3D printer upgrade. It even fits the Y-axis and X-axis of 5 plus. Easy to install: belt tension, no assembly required. This upgrade part is pre-installed and is very easy to install on the 3D printer.<br><br>Material:Aluminum alloy colour:Black<br><br>Package Contents: 1 x Synchronous belt tensioner<br><br>Only the above package content, other products are not included. Note: Light 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.