Hb Graphite Pencils Copper Series Made of Black Lime Wood and with Coloured Eraser (White, Green, Pink, Violet Et Black). Hexagonal Shape, Lead Measures 2.2 Mm ?. HB Lead is Medium Hard, Making It Suitable for Writing and Drawing. The Lead Creates a Uniform Stroke and is Resistant to Breakage Due to Its Lps (Lead Protection System) Which Strengthens the Lead By Sticking It to the Wood. The Wood is Sourced From Sustainable Forests.