These soft, chunky leads are popular with artists, and come in a range of colours for specialist purposes such as writing on glass or X-rays. Ballpen refills also inside. We stock 7B, 4B graphite leads and coloured leads for the Shorty pencil, and an HB for the Slight pencil. The Worther Shorty ballpoint takes standard multifunctional refills, whilst the fountain pen is compatible with standard short ink cartridges. View our refill finder.