The rotational mechanism...
The rotational mechanism that is the selling point for this pencil did rotate
the lead allowing for a constant 'soft edge' to contact the paper - this
provides, as advertised, a uniform line.
Since I write in cursive, I'd rather have a sharper point since I'm not pressing
as hard with the lead to create a strong visible line in script. For my writing
style I wasn't impressed with the effects overall.
Also note, when I purchased this pen earlier on this website it was $14 for the
starter set and is now only $5.