Paper Mate Mechanical Pencil Lead Refills, 0.5mm, Pack of 144 Leads (66382) High-quality HB-grade lead is strong and durable With every stroke, it produces consistent marks and reliable results across a wide range of media These dependable refills are highly recommended for Tri-Grip, Aspire, Clickster and additional Paper Mate pencils (Sold separately) Includes 144 mechanical pencil lead refills