Conte a’ Paris Sketching Pencil - Pierre Noire Black - Grade - 3B are an exceptional & extensive range of pencils, including both traditional & unique leads for maximum versatility in line, tone & intensity. Pierre Noire Pencil - a soft lead with a black that is dense, deep, indelible and matt. It is much appreciated for its use on all types of supports, including sketch pad, craft paper and linen canvas. Lead Diameter is 5 mm.