The Window Grinder is the grinder for you! The Window Grinder is without doubt one of the most unique grinders available on the market. Grinds teas, tobaccos, spices, and herbs effortlessly. • Sharp teeth provide easy grinding • A very Durable, reliable magnet means you do not have to worry about spills • 4 pieces with 3 chambers (grinder, ground chamber with a fine mesh screen, and pollen catcher) • Comes with a Pollen Scraper! • Unique window design allows for a view into the grinder.