Compton Grinders 2.5" 4-Piece GrinderWith precision cutting blades, O rings for smooth grinding, and a screen and pollen chamber, these 4 piece grinders are perfect for uniformly shredding your herbs. A large clear loading area with evenly spaced, razor sharp cutting blades allows you to grind multiple nugs at a time. Ground herbs fall through to the stainless steel sifter screen where dust like pollen falls through into the pollen chamber. The screen is removeable for easy cleaning and