POM Plastic Bearing Glass Balls 608 – 6006 /Deep Groove Ball Bearings Waterproof
Material: plastic, POM, glass ball. – No lubrication, can be used directly, POM plastic itself has a self-lubricating function, reducing the cost of maintenance. – High-precision glass beads, the material of the ball is high-precision glass beads, and its material is not easy to rot.