Product Catalog1Pcs SBR12UU SBR13UU~SBR40UU SBR50UU 12mm 13mm 16mm~50mm Linear Bearing Open Block Linear Slider For CNC SBR Linear Guide RailHome Improvement > Hardware$4.77 (≈ RON 22.82)$5.68In stockSold by AliExpress WWTo Store