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3x3 Double Cube I CubeTwist Conjoined 3x3 - Black
3x3 Double Cube I
CubeTwist Conjoined 3x3 - Black
3x3 Double Cube I
CubeTwist Conjoined 3x3 - Black

3x3 Double Cube I

Calvin's Puzzle

  • $12.99 USD



Product Description

The 3x3 Double Cube I is a type of modification where you combine two separate 3x3s into a single puzzle. If you're interested in non-standard puzzles, this is a great introduction.

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 Calvin's Puzzle
Type Shape Mods
Added 2021-05-14
Gross Weight 133g
Item Weight 160.0g

Customer Reviews

Based on 7 reviews
Louis W. (United States)
Harder than expected

Spent a few hours getting most of f2l, and coundnt go any further without a tutorial. This puzzle has great turning, a sturdy construction, and was really fun to solve

K (United States)
Very fun mod

This was my first puzzle of this type. This one turns really smoothly. Like my favorite shape mods, it can be challenging to learn, but learning the tricks will make me a better general cuber.

Richard R. (United States)
Why even have them stuck together if they can't interact?

I will admit, and maybe everybody else already knew better, but I was expecting to be able to have the two puzzles meaningfully interact -- swapping pieces back and forth and so on. But that's impossible with this puzzle. What you really get is a bandaged 3x3x3, where one column is totally fixed, so (depending on how you're looking at it) you simply can't do U or D turns. Then you have another cube stuck to it on the bandaged column.

Now there's nothing wrong with a bandaged cube, honestly it sounds cool enough, but it just seems a little over-elaborate to have two cubes, and all the engineering complexity that brings, when you basically solve them one at a time.

Anyway I shouldn't complain to. It certainly works to intimidate your non-puzzler friends, if that's something you're into. You need to be a bit gentle with it, but that's pretty standard for non-WCA puzzles, and I haven't had any pops or anything. I don't regret buying it and I don't dislike it; I was just expecting something a bit more.

Mike O. (United Kingdom)
The most durable fused 3x3 ive ever had

Lots of my fused 3x3s pop and break alot. This one, however, is very re usable. I even solved the cube in 37 seconds and it was perfectly fine. I recommend very much.


My Grandson wants every cube you make. Added to his collection

Kavan J. (United States)

This is a lot of fun. It is frustrating at first, but not too difficult. Just 2-3 more algorithms than the 3x3 has, I enjoy solving this. The quality of the puzzle itself isn’t great, but it’s pretty good and has a weird satisfaction to turning it. I’m glad I purchased!

This p.i.t.i.b.j.b.s.i.I.w.t.w.n.s. (United States)
Terrible product DO NOT BUY

It broke just from scrambling it you should really focus on making good products whatever brand you are instead of making more cubes