10pcs Miniature Sealed Metal Ball Bearing Model: Mr85-zz 5x8x2.5mm

20Pcs Bearings: 10 pcs 8X12X3.5mm & 10Pcs 5X8X2.5mmSize: 8 x 12 x 3.5mm(Inner Diameter x Outer Diameter x Thickness)Size: 5 x 8x 2.5mm(Inner Diameter x Outer Diameter x Thickness)Bearings reduce friction by providing smooth metal balls or rollers and a smooth inner and outer metal surface for the balls to roll against.These balls or rollers "bear" the load, allowing the device to spin smoothly.model: MR128-ZZColour: silverMaterial: metalPackage Contents:20 x BearingsOnly 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.