A stylus is a small pen-shaped tool used to input commands on a touchscreen device.
Styluses are helpful for drawing and writing on tablets and phones.
Examples:
She uses a stylus to draw on her tablet.
I need a stylus to play games on my phone.
The stylus is lost again.
He pretends the stylus is a magic wand.
The stylus is mightier than the finger.
The stylus dances across the screen.