Description:

Reduce friction inside the hub of the bearing by adding durable SPACERS and WASHERS.
Make your bearings stress-less and prevent your bearings from exploding or seizing.
Increase your wheel & speed and bearings & life by adding Professional Speed Kit.
608 bearing;Designed for skateboarding, long board, inline skate and electric skateboard.
Includes 8 professional-grade bearings, 4 skateboard spacers (which fit between the bearings)and 8 Speed Washers (which fit on the outside of the bearings).

Specification:

Material: chrome steel
Bearings Size: 21mm (outer diameter) x 7mm (width) x 8mm (inner diameter/axle)

Package Includes:

8 x professional-grade bearings
4 x skateboard spacers(Random Color,Black or Silver)
8 x Speed Washers(Random Color,Black or Silver)