Features: Power supply: 4 AA battery (not included) plastic shell, beautiful and wear-resistant. Suitable for grinding pepper, corn, mustard seeds, and other small sized spices. Suitable for restaurants, hotels, and homes. There is a screw at the bottom that can adjust the fineness/roughness of the pepper. Built in grinding motor, saving time and energy. The movement is made of high-quality ceramics, with high hardness and long service life. Grinding chili peppers is convenient and efficient, with salt and other types of spices. The built-in light will emit light during grinding, so you can easily see what you are doing. Material: ABS diameter: 5 centimeters, height: about 22 centimeters, color: black. Instructions for use: Open the left top cover and follow the instructions above to install the 4xAA battery into the machine. Connect the machine to the base according to the marked arrow, keeping it in place, and connect two metal wires to the screws on the base for working on the lamp.