The extra sharp teeth here will mash and grind your herbs into a fine dust mixture. Now for the best part: Once your herb is ground, the mesh in the base section of the grinder filters your mixture and allows only the smallest of particles to fall through and be saved. Size: 50mm. The Bling Grinders our shiny silver and gold with a solid, heavy feel. The lid is embellished with gems. The top part is magnetized and lifts off to reveal the main grinder section.