Download a FREE Solution for your puzzles!

Double Tumbler
Click Image to Enlarge

Double Tumbler

USD value is estimated. Change displayed currency?
ObjectRelease the end cap from the tumbler.
DifficultyLevel 10 - Mind Boggling
BrandJon Keegan
TypesJon Keegan, Premium Collectible Puzzles
Dimensions5 cm diameter x 8.3 cm tall
PackagingCardboard Box

Read Reviews Read reviews, and write your own!

Product Info

Designer Jon Keegan is a graduate student at The University Of Oklahoma enrolled in the Gallogly College Of Aerospace And Mechanical Engineering.  His puzzle story started in 2014 when he purchased his first puzzle from Wil Strijbos, the highly popular Aluminum Cross

In 2017-18 he enrolled in a series of Design and Manufacturing Process courses at University where his first puzzle idea came to fruition, ‘The Tumbler’, which was his start into the puzzle world.

The Double Tumbler is the second and more difficult iteration of the Tumbler puzzle. The Double Tumbler shares two identical pieces with his little brother but yet has added two distinctly different parts. Similar to the Tumbler, there are added slots and indicating marks included to aid in the puzzle experience.


1) Use indicating marks to find puzzle alignment.
2) Release tumblers into body of puzzle
3) Release double tumbler end cap

Twist turn shake solve learn. No external tools required. No force required. All movements are gravity-assisted. 

Materials:  6061 Aluminum, Ball Bearings
Classification: Mechanical Take-Apart

Customer Reviews

Review Icon Write your own review!

This item has yet to be rated

* We can show you estimates of our prices in your local currency, however please note these are estimates only. We will charge your purchases in Canadian Dollars, and your credit card company or PayPal will automatically convert the Canadian Dollar amount into your local currency using their own rates, which may vary slightly from the rates we show.

Sign In

Please sign in using the email and password you joined with.

Keeps you signed in on this computer - do not use on public computers.