Stellar Grinders #1 Herb Grinder - Large 2.5 Inch Four Piece Herb Grinder with Pollen Catcher - Tea, Tobacco, Spice Grinder - Free Carry Pouch and Bonus Nylon Anti Friction O-Ring PROFESSIONALLY CRAFTED - from Highest Quality Aircraft Grade Aluminum for extra toughness and lasting durability PREMIUM DESIGN - enjoy effortless shredding of your favorite herbs and spices with our Diamond tooth design that will crush, shred and grind your herbs to your desired texture. CENTERING WEDGES around the outer inside edge are there to keep pushing your herbs back into the center for constant regrinding until your desired texture is achieved. Stainless steel mesh screen - filters very fine pollen into bottom chamber. Pollen scraper included STRONG NEODYMIUM MAGNETS  deliver a solid closure, resulting in a perfect grind, locking in freshness and odor. The thin nylon poly o-ring counters friction and gives a smooth twisting action TOUGHNESS  our Grinders are finished with a High Quality Anodizing Treatment, that results in a Durable, Scratch Proof and Corrosion Resistant finish that will stand the test of time BUY WITH CONFIDENCE  100% Money Back Guarantee if you are not fully satisfied with our product