The pens have a water-based ink that won't bleed through your paper (applies to paper weights of at least 80 grammes)

it's available in 20 different colours

They’re perfect for use with ABT Dual Brush Pens or any other water-based paints and are suitable for watercoloring

The refill works with the MONO Zero pen

Tattoo coloring book for both grown-ups and kids

molotow blackliner pens set 2 4 set Talens Ecoline Liquid Water Colour Ink And Brush-pens The pens have a water-based4 set of the Molotow's Blackliners. The set includes the following sizes: 0. 3, 0. 5, 0. 7 and 1. 0. The markers are made in Germany and are filled with high quality black pigment ink that is water proof and has high lightfastness. We also sell Molotow Blackliner individually.