Mixed display with elastic soft or hard pen tip with black ink. WS-TBS dual brush pen - black ink on one side, grey ink on the other side both with soft tips - Line width varies from very thin to thick due to pressure exerted on the tip - Water-based with colour pigments, odourless - Perfect for calligraphy, lettering, sketchnotes, doodling, bullet journaling and much more - Colours: black and black / grey - Display contains: 18 pcs. with hard tip, 18 pcs with soft tip and 12 pcs. two soft tips