Zeberoxyz Upgrade 2020 Profile X axis+4020 Y axis Synchronous Belt Stretch Straighten Tensioner for Ender 3 Aluminum 3D Printer Parts (X2020+Y4020)

Material: Made of good quality Aluminum Alloy, Surface oxidation treatment,Sturdy, fine workmanship Install:Already assembled,you don't need to assemble it by yourself,direct installation and ready to use Function:you can adjust the belt freedom, more better than original Widely Used: widely used for 3D Printer Ender-3 Series etc Package Content: 1 Kit 2020 Profile X-axis Synchronous Belt ,1 Kit 4020 Profile Y-axis Synchronous Belt Stretch Straighten Tensioner