Staedtler Twin-Tip Permanent Marker Pens 36pk

Staedtler Twin-Tip Permanent Markers are available in an 18 or 36 pack.  One end is an extra-fine tip the other is a conical tip which allows multiple line widths depending if the point or side is used.  These pens write on all sorts of surfaces and are water proof.  Each set has a good range of fun colours!

Line Widths (approx.)

extra-fine tip .5mm 

conical tip, point 1mm

conical tip, side 4mm