The refill works with the MONO Zero pen

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

flexible tip allows precise strokes while still providing enough coverage for larger shapes and textures

Included in the set are: Black

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 refill works with the4 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.