25 pcs 608zz ball bearings & 1 pcs SDS MAX adapterHigh-quality professional adapter, durable and strong.Name:SDS Max to SDS Plus Chuck AdaptorSuitable for: , and and other standard SDS Max Drills608zz Bearings: Single-row bearing for supporting radial and axial loads.Shields on both sides keeping lubricant in and contaminants out.Zurability and resistance to deformity under heavy loads. 34,000 RPM limit with grease lubrication.It's suitable for use in skateboards, inline skates, scooters, and other skating applications.Bearings are Oil lubricated to be smooth.Item: 608-ZZ Ball BearingType: Deep groove ball bearingLubrication: OilClosures: 2 Shield, can/'t be removed and re-installed againColor:Black & silverMaterial:carbon steel & 40 Chrome Steel608zz ball bearings Size:8mm x 22mm x 7mmSDS MAX adapter size:Length: 220mmPackage Contents:25 x 608zz ball bearings1 x SDS MAX adapterOnly the above package content, other products are not included.Note: Light 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.