2x SBR12-575mm LINEAR RAIL 12mm asta albero completamente supportata + blocco 4 SBR12UU
2X SBR12-575mm 12MM LINEAR RAIL SHAFT ROD + 4 x SBR12UU Block. 4 x SBR12UU. Length: 575mm. 2X SBR 12 250mm (L) LINEAR RAIL fully supported SHAFT ROD + 4 x SBR12UU Block. This link for 12mm slotted bearings.