Welcome to my ZLQ store, if you have any questions, please contact us via Amazon email, we will give you the most satisfactory answer within 24 hours Is Made Of ceramic grinding core has high hardness, wear resistance and long life,55 °C high temperature 48 hours without damage Support different grinding coarseness settings from Coarse To A Fine Grind. Rotate left and right, 5 gears are optional One-handed operation, a switch button controls the entire salt mill There is an LED light on the top,indicator light, light up when worn. It Maintains Fresh Spices Longer. Specifications: Name: Pepper grinder Material:plastic , ABS, ceramic grinding core Size:15.7x5.15cm Battery: 6 * AAA batteries ( not included ) The package includes: 1pcs* pepper grinder Thank you for choosing our shop, we will do our best to serve you, if you have any questions, please contact us, we will solve the problem for you within 24 hours, I wish you a happy life!