Smooth and super-strong, Super Hi-Polymer庐 Lead’s proprietary formula delivers superior-quality marking with reduced smearing and excellent break resistance. Always producing crisp, clear lines with excellent consistency, this lead is ideal for all applications鈥攁rithmetic and equations, drawing and drafting, template work and more. Universal compatibility also makes Super Hi-Polymer庐 Lead Refills suitable for just about any mechanical pencil requiring the chosen diameter, and the HB lead refills are a direct equivalent to a #2 pencil鈥攇uaranteed to scan accurately on tests and documents. Pencil Lead Format: Tube; Lead Diameter: 0.3 mm; Lead Degree (Hardness): HB; Lead Color: Black.