- Useful upgrade: Parts for the Creality 3D printer, you can adjust the belt freedom, better than the original.
- Compatibility: Compatible with Creality Ender-3 Pro/CR-10 V2/V3 3D printers. Please choose the right size.
- Easy to operate: Simple combination installation, upgraded from the original version for a free adjustment.
- Package list: 2x Synchronous Belt Stretch Straighten Tensioner