Descriptions: Type: 608RS Material: Carbon Steel Inner Diameter: 8mm Outer Diameter: 22mm Thickness: 7mm Deep groove sealed miniature ball bearing. These bearings are pre-lubricated with grease. These balls "bear" the load, allowing the device to spin smoothly. Great use for Skateboard Roller Scooters Fidget Spinners Package Includes: 20/100PCS Rubber Sealed Ball Bearing


