Mont Marte Premium Dual Tip Art Marker 
 
These Premium Dual Tip Art Markers feature professional quality alcohol ink, making them ideal for artists and designers.
Features:
 
Professional level: suitable for designers, illustrators and fine artists
Alcohol-based ink
Dual tip with fine and chisel tips
Rounded triangular barrel makes it easy to hold and stops it from rolling away
Available in a range of rich colours
Permanent and waterproof ink (on porous surfaces such as paper, cardboard and canvas)
Can be used on most surfaces (results may vary depending on the surface type)
Acid-free
Non-toxic