The mf8 Crazy Pentahedron - Mercury is a 5 sided puzzle by mf8. This particular version has circular cutouts on two opposite faces with one of them being stationary relative to the side that they're on.

In the graphic listed, sides labeled '1' have circular cutouts that rotate with the face, sides labeled '0' have cutouts that do not rotate with the face.

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.

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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.
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• We advise that you look into your country's customs laws before ordering.

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