10 Pieces Steel Skateboard Bearings 5mm X 11mm X 4mm Zz Mr115-2rs

[Practical function] Deep groove ball bearing, with protective covers on both sides of the bearing to prevent the entry of lubricating oil and pollutants[Wide use] Widely used inventory, economic standard; a combination of less friction, faster speed and durability[Stable and durable] Bearing steel has durability and resistance to deformation under heavy loads[Multifunctional design] Special non-contact double rubber seals can seal dirt smoothly[Good performance] Small size, easy to install and replaceBall bearings are very suitable for precision work and applications that require the installation of many functional mechanical parts in a small space, such as 3D printers, quadcopters or models.Model: MR115-2RSSize: about 5x11x4mm (inner diameter x outer diameter x height)colour: silver + blueMaterial: bearing steelPackage Contents:10 x ball bearingOnly the above package content, other products are not included.Note: Light shooting 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.