Crystal Cubes 28-Piece Magnetic Building Cube Set

28 see-through cubes that snap into anything. Transparent Magnetic Building Cube Fidget Set, ages 4-8, sensory and stem.

$28.99

In stock

Best for Kids · 4-8 yrsOne size · sized by age

How old is the kid you are shopping for?

Built for ages 4-8

Pick an age and Zoomi will say straight out whether this one lands, and point at a better shelf if it does not.

  • Ages4-8 yrs
  • BatteriesNone needed
  • AssemblySnap-together play
  • Small partsYes · ages 3+
Color: Rainbow
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  • Arrives in 3 to 6 business days
  • Add $6.01 for free shipping
  • Free 30-day returns, even if opened
  • EN71 & CPSIA tested · small parts, ages 3+
Why kids love it

What makes it whoa

28 transparent cubes in candy colors

Magnetic faces snap into endless shapes

Squish and twist for sensory stress relief

Sparks building and shape-sorting smarts

Straight answers

What this is like in your house

  • NoiseSilent

    No motor, no speaker, no clicking parts.

  • MessSmall pieces travel

    Multiple loose parts, so it will find the rug. A shallow bin sorts it in a minute.

  • Your timeA hand at the start

    First build goes better with you. After that they take it over.

  • A typical goLong stretches

    Open-ended building holds attention past the novelty week.

Skills at play

What this kind of play tends to build

  • Spatial reasoning

    Working out which way round a piece has to go before trying it.

  • Planning and fine motor

    Deciding what to make, then getting fingers to agree with the plan.

  • Sensory processing

    Texture, weight and light give the nervous system something to sort.

  • Problem solving

    A puzzle with a right answer teaches sticking with a wrong one for a while.

This describes what this style of play generally supports, drawn from how kids use it. It is not a promise about any one child, and no toy replaces time with you.

Better together

Complete the play setSave 15%

Bundle these and take 15% off the set.

$77.97Total: $66.27you save $11.70
Toy a month

The Whoa Crate

A box of toys every month, picked for their age and what they are into, growing with them from toddler to tween. Join Zoomi's crew and they will never open the same thing twice.

Pick your crew

What should we lean into?

Anything to keep out?

Crates grow with them

Tap the stage they are in and every pick tunes to it.

$39.95 a month for the Duo Crate crate, at least $70 of toys inside every box. Cancel any month, no lock-in. Your build is saved on this device, so it is still here next visit.

The story

From the Zoomi studio

Whoa - they're see-through AND they stick! Twenty-eight jewel-bright cubes click together into towers, shapes, and squishy stress-busters. Build it, twist it, smash it flat, start again.

A grab-and-go pile of colorful calm for little builders. Parents love that it folds away into a tidy set - no tiny pieces scattered to the four corners of the living room.

Good to know

The details

In the box

28 pieces$1.04 per piece
  • 28×magnetic cubes

Everything listed is in the box. Nothing shown is sold separately.

Age & safety

Recommended age6+ years
SafetyTested to EN71 and CPSIA standards. Contains small parts and magnets - not for under 3s.

Size & materials

MaterialTransparent plastic with magnets
SizeApprox. 2 cm per cube

In the box

Contents28 magnetic cubes

Care & cleaning

CareWipe clean with a damp cloth

Colors

ColorsRainbow · Mixed
Safe & sound

Tested to EN71 and CPSIA standards. Contains small parts and magnets - not for under 3s.

Parent-approved

Reviews

4.6

391 reviews

94% recommend

Photos from parents

All reviews

Sort by

Fun and well made

my 8-year-old really likes it and it seems well made. Took off one star only because we wish it came in more colors.

David H. · Tampa, FL · 2 months ago Verified buyer
Bought for 3-year-old

Happy with it

Good quality and a fun little toy. Shipping was quick and it looks just like the pictures.

Nicole F. · Columbus, OH · last month
Bought for grandson

Happy with it

Good quality and a fun little toy. Shipping was quick and it looks just like the pictures.

Kevin W. · Austin, TX · 2 weeks ago
Bought for 6-year-old

Great little toy

Good quality and a fun little toy. Shipping was quick and it looks just like the pictures.

Rachel B. · Austin, TX · last month Verified buyer
Bought for son (7)

Instant hit

Bought it as a little surprise and it turned into the highlight of the day. my 10-year-old keeps showing it to everyone. Will absolutely order again.

Sarah M. · Tucson, AZ · 5 days ago
Bought for 4-year-old

So much fun

Bought it as a little surprise and it turned into the highlight of the day. my whole class keeps showing it to everyone. Will absolutely order again.

Megan L. · Madison, WI · 2 months ago
Bought for 10-year-old
Ask Zoomi

Questions & answers

What age is Crystal Cubes best for?

It's a great fit for 4-8 years. Check the safety note for any small-parts guidance.

Zoomi Team · 2 months ago · 24 found this helpful

Is it safe and non-toxic?

Yes, every Zoomi toy is made with non-toxic materials and checked against EN71 and CPSIA safety standards.

Zoomi Team · 3 months ago · 18 found this helpful

Does it make a good gift?

Absolutely, it's one of our favorite birthday gift picks. It arrives ready to spark the whoa.

Zoomi Team · 4 months ago · 11 found this helpful