Only for mini-whiteboard

The pins themselves are immaculate, clean writing on any smooth surface and are available in a fixed and re-sealable envelope. Write certainly on a whiteboard, but the stroke thickness is simply too thin that you can use it.

I even use it on the notice board of the weekly planning / month plan (A4). The calendar is laminated on the film and I'm wearing the dates that can be easily and quickly change / delete / re-schedule. The cleaning of the films is thus very easy and they can be used again.

Other advantages of these pins can be found in the item description. I am completely satisfied for my purpose of use - like 5 star.