I use them mainly to mathematical and technical models reproduce on a small whiteboard on the fly to make additional calculations and notes and sketches to construct. Thus, these pins are suitable with their narrow peaks particularly. Also, the color can be quickly and without wipe smudging. They also forgive it if you let time be a while no cap. In short, on a small scale (for which they are designed apparently) they are highly recommended and who would like to present or teach with greater whiteboards something is better off with the bigger whiteboard markers anyway.
