About "UFO Plate Puzzle" directly from Bruns:
A puzzle and a hiding place, designed to defy the standard rules of puzzling.
Usually, you use your ears, eyes, fingers, and logic to solve a puzzle. But what will you do when none of these work?
This is one step unique puzzle.
Difficulty level:
10 of 10 (with sticker)
3 of 10 (without sticker)
Main task: Open the puzzle. You can use it as a hiding place.
Internal size: diameter 65 hieght 11 mm
Can be used as hiding place
Material: duraluminum and plastic.
Size: 98x18 mm.