Want more from your grinder? The Prisma-Spinner surpasses simple grinder function by being totally decked-out in colorful hues, and featuring a fun spinning wheel on the lid. This grinder has a 4-piece/3-chamber design: A grinding chamber, ground herb chamber, and kief chamber. It includes a plastic scraper for collecting the potent kief that sifts off from your bud. This is a larger-bodied grinder, allowing you to grind lots of herb at once, and features a window in the herb chamber so you can see its contents before grinding up more.