GC 4-Piece Ceramic Herb Grinder – 2.5-Inch Blue | BlueBus Fine Tools

Works great had the same one for 6 or so years before the friction ring broke so I replaced it with the same one. Then emailed them and got some more friction rings to keep my old one running. Would recommend to anyone. Best locking mechanism in the grinder world.

I think the ceramic coating is great, I think it could be sharper as it's hard to grind dense moist bud. The very dry bud is easy to grind. When grinding moist (meaning not brittle dry) it builds up inside and the lid is hard to come off and sticks.

So much easier on my hands, love it!!