PRODUCT DETAILS • 0.5 MM LEAD REFILL: Everything is simple with mechanical pencil lead. Each pack comes with 8 tubes of 0.5mm mechanical pencil refills, 20 pieces per tube. Works with any 0.5mm mechanical pencils. • AVAILABLE IN: Our mechanical pencil leads are available in 0.5 mm, 0.7 mm and 0.9 mm lead, which provides the users with the choice of the leads that matches exactly with their requirements. • ECONOMY: The pencil leads are HB hardness lead is equivalent to a #2 wooden pencil. Therefore, these leads are perfectly suitable for various types of needs. • PHENOMENAL WRITING: The mechanical pencil leads produces smooth, crisp lines with dark imprint which makes it extremely easy to read. Leads don't break easily thereby making it ideal for a long time use. • WIDE APPLICATION: Suitable for all general writing applications such as notes, letters, and you can use it for office, classroom, home and other occasions.