Double Lock-a-Ball Brain Teaser: Mechanical Interlocking 3D Wooden Puzzle for Adults from SiamMandalay with SM Gift Box(Pictured)

Introducing: Double Lock-a-Ball This monstrosity is a creation similar to one of our other puzzles, except bigger, much bigger, and much more difficult.

Disengage the lock and try to release the ball inside.

Once you have managed that, lock it back up again.

SiamMandalay believes in uniting the mastery of artisanal craft with clean, sophisticated, styling.