These are nice pens. Arrived next day (prime user) and are as advertised!
Colours are vibrant and all worked. The pens are definitely fine tipped.
My only issue is there isn't anything around the area you hold the pen so at first the pen was slipping slightly as I was writing, although I have figured how to hold it comfortably, would be good if they had little grip bits near the tip for comfort due to their thin shape.
Overall really nice pens and have come in very handy for my university work :)