The Pilot Begreen Twin Fine Marker an innovative permanent marker. With a fine line bullet tip at one end and an extra fine line bullet tip at the other, this marker suits a variety of applications. The bonded acrylic fibre tips retain their shape and write permanently on almost any surface, including paper, glass, plastic, ceramic and metal.?These markers have xylene-free ink and are made from 76.1% recycled material. This pack contains 10 twin markers.