Top quality, sealed rear hub bearing as used on Vespa PX80, PX125, PX150, PX200 E, '98, MY, '11, T5 and Cosa. These were also used on earlier P125X, P150X and P200E as well as the Sprint, Super, rally, PKXL, PKs and ET3 as well as other models but were not the sealed type, these are perfectly safe to use as they are or you can pop the seals out with a screwdriver if you'd prefer.