Product Name : Groove Ball Wheel BearingsMateral : Carbon SteelSize : 8 x 22 x 7mm / 0.315" x 0.866" x 0.275"(Inside Diameter * Outside Diameter*W)Color : As Picture Shown* Bearings specialized production Skateboard Bearings.* Bearing is a high precision bearing used in roller blade wheels.* It measures 8mm inside diameter, 22mm O.D. and 7mm wide.* Weight : 58g* Package Content : 5 x Groove Ball Wheel BearingsNote: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.
