Hasn't put it down
Bought it as a little surprise and it turned into the highlight of the day. my son (7) keeps showing it to everyone. Will absolutely order again.
Bought for grandson
Secret Solver 3D Unlock Brain Teaser Puzzle Set
Hover or pinch to zoom
Find the trick. Be the hero. 3D Unlock Brain Teaser Puzzle Set, ages 9-12, educational and travel-ready.
$62.99
In stock
How old is the kid you are shopping for?
Built for ages 9-12
Pick an age and Zoomi will say straight out whether this one lands, and point at a better shelf if it does not.
- Ages9-12 yrs
- BatteriesNone needed
- AssemblyReady to play
- Small partsYes · ages 3+
Color: Mixed
Secure checkout
- Arrives in 3 to 6 business days
- Free worldwide shipping · ships in 1-2 business days
- Free 30-day returns, even if opened
- EN71 & CPSIA tested · small parts, ages 3+
Why kids love it
What makes it whoa
Each 3D puzzle hides one clever unlock move
Builds logic, patience, and problem-solving
Lightweight and tough for backpack life
Great for swapping challenges with friends
Straight answers
What this is like in your house
- NoiseQuiet play
Nothing in here powers a sound, so the volume stays whatever the room already was.
- 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
- Early learning
Colors, counting and shapes land faster in a game than on a worksheet.
- Independent play
A toy that works in a back seat is a toy they run themselves.
- Sorting and sequencing
Grouping, ordering and trading are early maths wearing a costume.
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.
$176.97Total: $150.42you save $26.55
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.
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
Every puzzle hides one secret move - and the kid who finds it gets that triumphant whoa. This set is a row of little mysteries, each begging to be cracked, then handed to a friend with a sly 'bet you can't.'
Tough, lightweight, and pocket-ready, Secret Solver turns dull downtime into a quest. Screen-free brain fun that quietly builds patience and clever thinking, one solved puzzle at a time.
Good to know
The details
In the box
1 piece- 1×Set of assorted 3D unlock puzzles
Everything listed is in the box. Nothing shown is sold separately.
Age & safety
| Recommended age | 8+ years |
|---|---|
| Safety | Tested to EN71 and CPSIA standards; contains small parts - not for under 3s. |
Size & materials
| Material | Durable ABS plastic |
|---|---|
| Size | Each puzzle approx. 2-3 in |
In the box
| Contents | Set of assorted 3D unlock puzzles |
|---|
Care & cleaning
| Care | Wipe clean with a damp cloth |
|---|
Colors
| Colors | Mixed |
|---|
Safe & sound
Tested to EN71 and CPSIA standards; contains small parts - not for under 3s.
Parent-approved
Reviews
Photos from parents
All reviews
Sort by
Instant hit
This is the one my 6-year-old reaches for every time. Sturdy, safe, and genuinely fun, exactly what I hoped for from the photos.
Bought for niece
Really good
Good quality and a fun little toy. Shipping was quick and it looks just like the pictures.
Bought for 3-year-old
New favorite toy
This is the one my daughter (5) reaches for every time. Sturdy, safe, and genuinely fun, exactly what I hoped for from the photos.
Bought for kindergartner
Worth every penny
Perfect size, great quality, and the kind of toy that actually keeps my grandson busy. Already grabbed a second one for a birthday gift.
Bought for 6-year-old
Buying another for a gift
This is the one my 10-year-old reaches for every time. Sturdy, safe, and genuinely fun, exactly what I hoped for from the photos.
Bought for 4-year-old
Ask Zoomi
Questions & answers
What age is Secret Solver best for?
It's a great fit for 9-12 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