This battery operated pepper mill from Trudeau features a ceramic grinder and can be used with both salt and peppercorns. The mill has an adjustable grinding mechanism so you'll be able to grind from very fine to very coarse. The electric pepper mill runs by pressing the button on top of the mill. The mill measures 7 inches / 18cm, has a 1 year warranty and runs with 4 AAA batteries which are not included.