The SharpStone® 2.0 Hard Top 4 Piece Grinder – This re-designed grinder still provides you with the same great features of the original SharpStone Grinders, but with a few modest upgrades in ergo design and quality. We also want you to know that you're getting the authentic SharpStone experience so there have been a few more added features to help prevent counterfeiting and improve your overall grinding experience.