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.
"A different twist on a classic by Wil Strijbos"
Use indicating marks to find puzzle alignment.
Release tumblers into the body of the puzzle.
Release double tumbler end cap.
Twist turn shake solve learn. No external tools required. No force required. All movements are gravity-assisted.
IMPORTANT- PRE-ORDER!Orders placed for this item will be fulfilled in Late February when they arrive from the manufacturer. Placing an order does guarantee your shipment at that time, as we have a verified allocation and are limiting pre-sales to that number. Orders are fully refundable prior to shipping, with no reason necessary.