Description Adjustable X-axis timing belt straightening tensioner, you can adjust the belt freely Surface treatment: anodic oxidation. Fine workmanship, wear and corrosion resistance. Wide range of applications: Ender 3/ Ender 3 Pro/ CR10 / CR10S/CR10 S5 3D printer upgrade. It even fits the Y-axis and X-axis of Ender 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. Material:Aluminum alloy colour:Black Package Contents: 1 x Synchronous belt tensioner Only the above package content, other products are not included. Note: Light shooting 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store