Unbranded 10pcs Bike Bicycle Hub Bottom Bracket Bearings 163110 (16x31x10mm) Pour Giant Mountain Bike Bicycle

HIGH QUALITY: Made of high quality Material, durable with the resistance of wear and collision.FEATURE: It is characterized by small frictional resistance and high rotational speed and can be used on mechanical parts that are subjected to loads or axial loads, such as machine tool, electronic equipment, .GOOD DESIGN: Exquisite design, two sides metal sealed ball bearing, with good dustproof effect. Built-in precise Mini bearing provides running and long service life.Great products for standard and DIY.Perfect for use: Wood,tools, and so on.color:SilverMaterial:bearing steelsize:. 16 x 31 x 10mmPackage Contents:10 x bearingOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.