Safe and More Durable The adjustable grinders core of salt and pepper grinder set are made out of ceramic for better grinding and more safe and durable. NOTE:SALT AND PEPPER NOT INCLUDED. . Capacity of Pepper Grinders: Our Salt and Pepper Mills are 7.5(19.05cm) tall and each salt grinder and pepper grinder will hold up to 3/4 cup or 6 oz of the salt, pepper or the spice of your choice .Please NOTE its manual cranked not the electric grinder. . Adjusting CoarsenessAn efficient adjustable non-corrosive ceramic grinder on the top of each salt pepper grinders, Enjoy spices of different sizes simply twist to adjust and making it effortless to grind.The small waist shape design makes it easier for you to hold the grinder . Support mills interchangeable:These two salt and pepper sets can be used interchangeably. It doesnt matter which one you use to grind salt or pepper, because every grinder is the same. So you can put salt or pepper in any one you want. .