Zeberoxyz Upgrade 2020 Profile X axis Synchronous Belt Stretch Straighten Tensioner for Ender 3/Ender3 Pro/Ender3 V2/CR 10/ CR 10 V2/ V3/CR 20 Pro 3D Printer Parts (2020)

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 CR-10 Series,Ender-3 Series Package Content: 1Kit 2020 Profile X-axis Synchronous Belt Stretch Straighten Tensioner, 2PCS M4 T-Nuts, 2PCS M4x8mm Screws,2PCS Allen Key