Size :Fit 20 series Aluminum extrusion
Color :Black
Material:aluminum alloy
Package:1kit X-axis Synchronous Belt Stretch Straighten Tensioner
4pcs M4 T-Nuts
4pcs M4x8mm screws【Material】 Material: aluminum alloy; Surface Treatment: anodizing
【Widely Used】widely used for CR-10,Ender 3
【Install】Already assembled,you don't need to assemble it by yourself
【Function】you can adjust the belt freedom, more better than original
【Package Include】1kit X-axis Synchronous Belt Stretch Straighten Tensioner, 4pcs M4 T Nuts, 4pcs M4x8mm screws