This drawing pencil is a unique formula that combines the smoothness of graphite and the darkness of charcoal. It lays down smooth, strong jet black lines that are perfect for sketching, drawing, and layout. It is a great accent pencil to use either with General’s Charcoal or Kimberly Graphite pencils. You can use a damp brush over your pencil marks to dissolve the top layer, creating a liquid you can move around the paper to create beautiful tonal changes within and around the existing pencil lines. Package contains 2 carbon sketch pencils.