Escape Room Puzzle Lock Set - Difficult puzzles for adults – Kubiya Games
Amazon.com: Mattel Games Escape Room in a Box: Flashback, Escape Room Game with 19 Puzzles and 4 Locks, Can Pair with Amazon Alexa, For Adults and Teens 13 Years Old and Up :
Why Trick Locks Are Awesome & Don't Belong In Escape Rooms [Design Tips] - Room Escape Artist