The following are the 10 best plastic herb grinders:
1. Grasscity Plastic Magnetic 3-Part Herb Grinder
3. Travel Herb Grinder & Stash Jar
4. Storz & Bickel Volcano Herb Mill Grinder
5. Highroller Grinder and Fastpack Cone Filler
8. Smokezilla Magnetic Plastic Grinder
10. Grasscity Acrylic 3-Part Herb Grinder