"Pilot Progrex mechanical pencil offers you great value with its sliding metal sleeve which helps to prevent lead breakage, ergonomic grip, and best of all, it is eco-friendly! Made with 70% of recycled plastic (excluding consumables), it is an effort to reduce our impact on the environment. Used together with Pilots super smooth and super strong pencil lead, your writing will be clean, dark and you wont be slowed down by lead breakage."