DescriptionThis item is manufactured with premium steel material for durable and long lasting use. Excellent workmanship makes it suitable for high-end equipment. Universal equipment using. Round linear bearing accessory provides you precision use. High safety factor, can be used with confidence and can effectively reduce vibration and unnecessary noise.Features- Color: Silver. - Material: Steel. - Size: 3.20X3.20X3.00cm/1.26X1.26X1.18inch. - Rigorous process, selected good steel material manufacturing, seemingly simple, but everywhere is delicate. - Linear bearing is a linear motion system produced at low cost, used in conjunction with a cylindrical shaft with an infinite stroke.- The steel ball rotates with very little frictional resistance, so that high-precision and smooth motion can be obtained. - High safety factor, can be used with confidence and can effectively reduce vibration and unnecessary noise. - The excellent workmanship of our product will bring you a good using experience.