4PCS UM3 Ultimaker 2 Aluminum Alloy Frosted Slide Cross Block+Graphite Copper Sleeve For 3D Printe

Specifications:

Material: Aluminum Alloy

Application: Fit in Cross shaft 6mm, Transimission shaft 8mm of Ultimaker 3D Printer.

Fit for: 3D printer

Graphite copper sleeves are less friction force and smoother than common copper sleeves.

Note: Timing belt is not included.

Package Included:

4x Slide Cross Block 
4x Graphite Copper Sleeve