This set does not require batteries and is made with a ceramic grinding mechanism for fine or course grinding based on your preference. Just push the button. It is thumb-operated which makes it easy to use it with a single hand. This beautifully finished grinders look great on tables or near the stovetop and works great with black peppercorns, sea salt, Himalayan salt, spices and gourmet table seasoning. So what are you waiting for?