Emergency Manual Stopping Device in a Car
Puzzle 10 of Hot Things Piece of Cake Pack
Question is: Emergency Manual Stopping Device in a Car
and the answer is: HANDBRAKE
Word Meaning:
HANDBRAKE — (mechanical engineering, automotive, rail transport) A brake in a vehicle, set by hand, and usually locking on until released by hand, enabling its use when parked.
Definitions from Wiktionary.