The mf8 Double Crazy Cube isn't your standard crazy 3x3. Each face has a double ring on it. On the red/orange faces, the inner circle remains stationary while turning. On the white/yellow faces, both rings move with the face. And on the green/blue faces, both rings remain stationary. This leads to very interesting solutions that are quite the challenge. Give it a shot if you think you've got what it takes!

Not completely satisfied with this product? We accept returns within 4 weeks (28 days) past the delivery date, for either store credit, or a full refund to the payment method — the choice is yours.

Click to see exclusions and more details on our returns policy

All of our products are guaranteed to be free of defects, or we will replace and reship at no cost to you. Please contact us within 4 weeks (28 days) past the delivery date to report any issues with items you have purchased.

Please note that some new cubes when being used for the first few times may experience what is termed a "pop". This is when one or more parts of a puzzle pop out without any damage actually being done to any of the pieces. This also occurs from time to time during normal usage. Pops are typically not considered a defect if the parts which come off can be reassembled by hand.

The corners on 2x2 puzzles should not be twisted as doing so may snap the piece. Damage caused by corner twisting is not considered to be a defect.

• Free standard U.S. shipping (includes Hawaii, Alaska, and AFO/APO) (2-5 business days) is offered for orders with a subtotal of $55.00+. Free expedited shipping (1-3 business days) is offered at $85.00+.
• All orders are shipped from our New York warehouse.
• Orders are shipped the same business day they are placed, or the next business day. The cutoff for same day shipping is 3PM EST.
• There is no processing/handling surcharge — all our shipping rates are at rock-bottom.

• We ship to all countries not sanctioned by the U.S. government.
• We advise that you look into your country's customs laws before ordering.

Click to learn more about our shipping methods