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HelloCube 3x3 Gear Cube Extreme - Black
HelloCube 3x3 Gear Cube Extreme - Black

HelloCube 3x3 Gear Cube Extreme


  • $8.99 USD



This product has been discontinued indefinitely or we aren't sure when it will be back in stock.

Product Description

The HelloCube 3x3 Gear Cube Extreme is a different kind of gear cube mechanism. With this version, one of the slice layers is free to move independent of the gears. If you're familiar with the standard 3x3 gear cube, this could be a new challenge!

Easy Returns!

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

Our Promise to You

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.

Fast & Free Shipping Available!

  • 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.
For our customers outside the U.S.:
  • 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

Product Specifications
Manufacturer HelloCube
Type Gear Cubes
Added 2021-06-07
Gross Weight 162g
Dimensions 60.0mm3
Item Weight 137.0g

Customer Reviews

Based on 1 review
Raymond Z. (United States)
Definitely tougher than the Gear Cube

I specifically bought this puzzle having tried a regular Gear Cube before and finding it too easy.
The Gear Cube Extreme is much more challenging, and the current solution I found requires many turns.

Edit August 2022: I found much easier algorithms, but the puzzle is still interesting compared to the Gear Cube.

-1 star because the stickers are inconsistent with other puzzles. It is almost as though there is a Diansheng-style layer of painted stickers on the puzzle, followed by a layer of very thin transparent resin on top. It does mean there's no such thing as peeling stickers for that puzzle, but I sometimes wonder whether the paint might be a health hazard. Also, it means purple is permanently opposite to yellow, and I speculate that the way the stickers work makes the puzzle more dense.