Plastic Pen Used to Tap a Tablet Screen
Puzzle 11 of Prestigious Universities Medium Pack
Question is: Plastic Pen Used to Tap a Tablet Screen
and the answer is: STYLUS
Word Meaning:
STYLUS — (writing) An ancient writing implement consisting of a small rod with a pointed end for scratching letters on clay, wax-covered tablets or other surfaces, and a blunt end for obliterating them.
Definitions from Wiktionary.