Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Description: Slide bearing block 12mm SBR12UU Router Motion Bearing Solide Block Unit XYZ CNC SBR Series Model:SBR12UU Material: The built-in bearings: Bearing Steel The external material :Aluminum Alloy Bore size:12MM Quantity:1 PCS Package Include: 1X SBR12UU