Designed for versatility, our everlasting pencil lead refills are suitable for various applications, from detailed architectural plans to creative art projects. Each box contains lead that resists breaking, providing a reliable writing experience. To use, just load the lead into your mechanical pencil and enjoy uninterrupted writing or drawing. Features -Color:Black -Material:Resin -Size:6.00X0.07X0.07cm/2.36X0.03X0.03in - resin leads: crafted from resin, these pencil leads offer a smooth and consistent writing experience, reducing the chances of breakage -Convenient usage: no need to sharpen your pencils; simply insert these leads into your mechanical pencil and start writing or drawing immediately -Multipurpose: suitable for a variety of tasks, including writing, sketching, and technical drawing, making them a versatile addition to your stationery supplies -Compact and portable: come in a small, easytocarry box that fits wonderfully in your bag, pencil case, or desk drawer, ensuring you always have them on hand -Wide application: compatible with 0.7 mm mechanical pencils, these leads are ideal for use in educational and personal settings Package list: 2 pcs x 20 box automatic pencil refills(12pcs per box)