The Waring CAC103 grinding bowl is designed specifically to work with your existing WSG30 commercial spice grinder. Effortlessly grind peppercorns, cinnamon sticks, star anise, nuts, and much more in this durable bowl. Each stainless steel grinding bowl will replace the one that came with your grinder. It's also a good idea to buy extra bowls so that you can store spices and still always keep a free bowl for grinding.