Soft replaceable graphite leads from a Swiss manufacturer for mechanical pencils are a practical solution for every artist and writer. Unlike traditional pencils, they do not need to be sharpened; only the lead needs to be replaced. The Swiss company Caran d'Ache has developed high-quality leads for your mechanical pencils. All graphite replacement leads are manufactured with great care. Caran d'Ache utilizes modern technologies in the production of its writing instruments, including a special computer that checks for errors. Without unexpected issues with the leads, you can complete large volumes of work or projects on time and focus entirely on the quality of your work. The leads have a B hardness. The packaging protects your graphite leads while on the go.