Refill your mechanical pencils with smooth, reliable Pilot Neox leads. Made of quality graphites with high purities, the lead is more sturdy than conventional leads. The strong yet smooth lead produces clean and crisp lines on paper. The highly recyclable case features a press button to easily open and access the leads inside. Each case contains 40 pieces of pencil leads. About Pilot BeGreen Series Pilot Pen takes a long-term approach towards a future more in harmony with the environment: encompassing society, nature and the global economy. Recognising the impact our industry has on the environment early on, Pilot Pen created the BegreeN range in 2006, ensuring all BegreeN products comprised of a minimum 70% recycled plastic. Pilot Pen is taking the old and making it new, and doing our bit for a better future.