This Box requires BALLS to open it!
15:57
The Impossible Titan Puzzle - Why it's so Incredibly Difficult and how to open it!!
8:37
7 types of locks and hides using magnetic force and natural fall
18:38
This Puzzle Box Contains an Ingenious Mechanism!! - The Portal Box
4:47
Trick Opening Boxes - Part 1
31:32
Possibly The Greatest Puzzle Box Ever Created
17:54
The Steam Machine Puzzle – Only for the Brave Engineers!
12:20
How to Make an Amazing Number Combination lock Box from Cardboard - with a Secret trick to open it
16:18