Don’t be fooled by the set of keys provided with this metal lock. It’s not as straightforward as it looks. The object is to find the correct moves to open the lock. This lock is slightly different from the others in our collection, featuring a numbered dial which makes you feel like you’re breaking a safe. While its difficulty level is accessible for beginners it still needs a keen sense of observation and perseverance. The Trick Lock 4 is from our PuzzleMaster Trick Lock collection.