608 ZZ Ball Bearings(10PCS), 608ZZ Metal Double Shielded Miniature Deep Groove Skateboard Ball Bearings (8mm x 22mm x 7mm)

Good quality for price point. They are in use now.

These arent awesome. They worked for what I needed them for (a filament holder for my 3d printer). I didnt need too much spin for that. Then with all the extras my kids thought it would be fun to print a fidget spinner. It doesnt spin well for that. But they did get the job done.

Windmill

the package was very greasy , so much that it made a mess, you will have to wipe them off or get your hands very greasy.

Just needed two, so why not ten? These bearing seem to be quite common. Found they are used in skate board wheels and small motors. Bearings appear to be good quality. Will not know until they run for a while. installed in a vacuum cleaner motor. Will update the comments once they have been operational for a while.

Only needed 2 for an old Electrolux Epic 6500 vacuum cleaner. Much cheaper than replacing the motor.