The pens are water-based and have a soft flexible brush tip that can draw both wide and thin lines

acid-free ink ensures that you can use it safely for a wide range of projects

30 ml refill bottle with water-based creative medium for diluting and brightening up without losses in quality and stability

The Pentel AIN Stein leads are refillable

Nib size: 15 mm broad tip

molotow exchange tips specialtech 1 mm 5 pack MTN Water Based markers and spray paint The pens are water-based and5 pack of 1 mm extra fine nibs that fit Molotow markers in the 100 series (127HS, 127HS EF, 111EM, and 120PP). The nibs resemble the tip of a classic fineliner pen and are perfect for details. The nibs work with both water based and alcohol based paint ink.