Material: 3D Printer belt tensioner made of good quality cold rolled sheet material, Surface oxidation treatment, Sturdy, fine workmanship
Install: Already assembled, you don' t need to assemble it by yourself, No need to change the original belt length, direct installation and ready to use
Function: you can adjust the belt freedom, more better than original
Widely Used: Widely used for Ender-3 upgrades Series
Package Content: 1 Kit 2020 Profile X-axis Synchronous Belt, 1 Kit 4040 Profile Y-axis Synchronous Belt Stretch Straighten Tensioner