These 5 BIC Velleda 1741 markers from BIC are available in 4 classic colors (blue (x2), black (x1), red (x1), green (x1)), they write for a long time and erase very easily. They allow for medium-thickness lines (1.4 mm line width). Their bullet tips are fixed: they write without bending or pushing in under pressure on whiteboards or BIC Velleda rolls.