●Turn the cartridge cap in the direction of the arrow (OPEN mark) and remove it. ●After that, turn the holder to the right and pull out the core about 1 to 2 mm before using. Since the core is soft, be careful not to pull it out too much. ●After use, return the core to its original position and turn the cap to close it properly so there are no gaps. (If left open, the core may break or become hard and difficult to draw.) ●Since this eyebrow pencil is difficult to remove, we recommend using an oil-based eye makeup remover to remove it. ●When replacing the core, pull out the cartridge (this product) from the holder and insert a new product. <How to set it in the holder> ●Please set it in the "Maquillage Eyebrow Holder" sold separately. ●Insert the cartridge (this product) into the hole in the holder until you hear a click and set it in place. ●You can also set tools by removing the included cap.