Velleda 1741 whiteboard pens by BIC come in a pack of 60 in assorted colours including black blue red green pink orange turquoise and purple and erase in a single wipe. They have a medium nib for 1.4 mm wide lines. Designed with a bullet nib that stays in place so it never bends or caves under pressure while writing on BIC Velleda whiteboards or dry erase rolls.