POM Plastic Balls Solid Polyoxymethylene Precision Bearings Ball Rolling Bead 1 2 3 3.175 3.5 4.763 5.556 5.95 6 6.35 - 70mmHome Improvement > Hardware1,31 USD (≈ 1,17 €)2,38 USDDisponibileSold by AliExpress WWVai al negozio