The CASTELL 9000 Jumbo is perfectly suited for quick sketches and drafts as well as shading extended areas and artistic work. These artist quality pencils feature extra thick leads that are break-resistant due to SV bonding. They use an environmentally safe water-based coating, and are ideal for professional users.Details:5.3 mm leads5 pencilsComfortable, over-sized barrelsFinished with an environmentally-friendly varnishContentsHB pencil2B pencil4B pencil6B pencil8B pencil