A:AnswerThe stylus pen is not refillable. I seldom use the pen function. The rubber tip will wear out long before you run out of ink. But they do last a long time (months), and I usually lose mine before it wears out. That's why it's great that it's a 3-pack.
A:AnswerThe stylus tip is not electronic. It does not need a battery. I think it works magnetically or thermally, in contact with the touchscreen surface.
A:AnswerI can't imagine who would rather know the dimensions of the packaging rather than the actual product. I like the SLIM model very much and would like more of them; I measured the one I have with an Engineer Scale, and the stylus shaft is exactly 0.3 / 3/10-inch in diameter. The I don't care for the chubbier ones with the fat rubber tips, they do not seem to work well for me.
A:AnswerIt depends of the stylus type. Drawing styluses have small hard rounded ends. The soft end stylus is mainly intended to be use to select items on screen.
