The pen itself has confirmed that 45-degree angles for both writable and set the scene properly, there are no problems with special materials to confirm that the applicable to 1 hundred thousand times.
The pen itself has insisted that it can be written as a 45-degree angle perpendicular with no problem. I also confirmed with a special material that can use up to one hundred times t.
Of the pen itself that confirm that can be written in either the 45 degrees and a perpendicular angle with no problems. He also confirmed with special materials that can be used to 1 thousands of times.