They've got the pros of both mechanical and standard pencils without the flaws of both. I use one for writing and sketching and i've had the same pencil for 12 years now and still use it to this day. The refills can be a bit tricky to find though in stores. Art supply stores sometimes have them and i've seen them at places like staples.
https://www.amazon.ca/Mars-STAEDTLER-Technical-Pencil-Set/dp...
They've got the pros of both mechanical and standard pencils without the flaws of both. I use one for writing and sketching and i've had the same pencil for 12 years now and still use it to this day. The refills can be a bit tricky to find though in stores. Art supply stores sometimes have them and i've seen them at places like staples.