Compatible with:
2020 X-axis profile belt tensioner is suitable for almost all of Ender and CR series 3D printers.
4040 Y-axis profile belt tensioner is ONLY suitable for Ender 3 Pro and Ender 3 V2.
Package includes:
1Pc 2020 X-axis profile belt tensioner or 1Pc 4040 Y-axis profile belt tensioner