I have a big white board on my wall and a small A4 white board that I can carry around with me and jot on. The A4 board came with a little pen, but that broke soon after purchase so I had to use one of my big thick markers that I usually use on the big board. If anyone has used these before, then they will know how much they stink. It's not so bad when using them on the big board, but when your using them close to you, like I was when I write on the A4 board, then it becomes a problem. It came to a point where I was getting headaches, so I decided to get another pen. A smaller pen. I got this pen.
It is perfect for writing on small surfaces. You can hold it exactly like a Biro and have maximum control. The nib is small so you can fit a lot of writing in if you have a small white board. It even comes with an eraser on the end. I have been using it for 4 months now and it is still going. Remarkably the eraser is still working too. I thought it would run out of use fairly quickly as it is not that big, but it is great. It doesn't reek like the big pens so this is exactly what I needed.