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RIWI® XXL Building Blocks

The original.

Build, climb, invent — something new every day. No instructions in the box: your kids decide what it becomes.

Less screen time, more real play
Caves, castles & obstacle courses — built anew every day
Sparks imagination, motor skills and movement — from 3 years
Sturdy, safe, non-toxic — TÜV Austria certified to EN 71
Every set: equal parts blue · yellow · green · red

€239.95 €279.95Now €9.99 / block

incl. VAT · ✓ Free shipping within the EU

12 blocks FREE — on top of your set!12 blocks FREE — on top!Worth €129.95 — added to your cart automatically⏳ While stocks last

Choose your set: 24 Blocks

The more blocks in the set, the cheaper each one gets.

Estimated delivery: 3–5 business days

85,000+ parents trust RIWI® — in over 30 countries
4.78★ · 673 verified reviews on riwi-buildit.com
30-day money-back guarantee — Details

With a RIWI® set you get extra-large foam building blocks that let kids build freely: a cave, a rocket, a tall castle or a spaceship. Thanks to the XXL size, they create structures they can actually crawl inside — turning every play session into a little adventure. The blocks hold without any tools: stack them up, build, play.

Size per block (H × W × D): 71 × 20 × 10 cm
Colours: blue, yellow, green, red — equal parts in every set
Age: from 3 years — and sturdy enough for adults (holds up to 110 kg)

Built for real family life: sturdy materials, child-safe construction and a soft, grippy surface that keeps playing for years.

Material & construction

High-quality, tested polyurethane foam in mattress quality — soft, stable and shape-retaining
Grippy surface: the blocks hold together on their own — no velcro, no magnets, no connectors
Built to last: high abrasion resistance for years of daily play

Safety

TÜV Austria certified to EN 71 (parts 1–3) — free of harmful substances
No hard edges; holds up to 110 kg

Care

Machine or hand washable at 30 °C
Use a mild detergent — no fabric softener
Gently squeeze out the water and dry lying flat

Starter Set — 12 blocks: 3 blue · 3 yellow · 3 green · 3 red — approx. 4.5 kg
Family Set — 24 blocks: 6 of each colour — approx. 8.5 kg
Giant Set — 36 blocks: 9 of each colour — approx. 12.5 kg
Mega Set — 48 blocks: 12 of each colour — approx. 15.5 kg

Shipping note: The blocks arrive vacuum-compressed for safe transport. After unpacking, the foam takes up to 24 hours to reach its final shape.

Building blocks kids love.

Read all reviews

★★★★★

Great building blocks! What I especially love: they are washable. When you lay them out flat to dry, they take their shape back perfectly. We have the 48-piece set and build huge caves with room for several kids at once.

★★★★★

We could throw out every other toy and my kids would still be happy, because all they want to do is play with their RIWIs! It sparks the imagination enormously — from caves to whole castles, anything is possible. You won't regret the purchase.

★★★★★

By far the best investment for indoor play. The blocks are functional, superbly made and let kids romp, climb and do somersaults safely — with no hard edges at all. Finally a solution that keeps them active!

★★★★★

Beaming little faces and heaps of building fun! The material is soft, light and grippy — perfect for stacking. A highlight is toppling a tower together and landing softly in a mountain of blocks. Odourless and absolutely top quality!

★★★★★

Just bought my second set. There are plenty of sellers out there — but buy the original. The quality, the versatility and the fact that it still looks great in the living room make it worth every cent. Highly recommended!

★★★★★

Our three kids keep coming up with new ideas and love to simply throw themselves into their creation at the end to knock it all down again…

Which set fits?

Find your RIWI® set.

All sets work together — start small, expand any time. More blocks, bigger builds.

12 Blocks

Starter Set

Perfect for: 1 child · small room · perfect gift
What you can build: Rockets, small caves, first towers

€129.95~~€149.95~~

Now €10.82 / block incl. VAT, free shipping within the EU

Bestseller

Walk-in cave made of 24 RIWI building blocks

24 Blocks

Family Set

Perfect for: 1–3 children · living room · everyday play
What you can build: Walk-in cave, big tower, castle

€239.95~~€279.95~~

Now €9.99 / block incl. VAT, free shipping within the EU

★ Best value

House with a roof made of 36 RIWI building blocks

36 Blocks

Giant Set

Perfect for: 2–4 children · large playroom · siblings
What you can build: House with a roof, spaceship, movement course

€319.95~~€399.95~~

Now €8.88 / block incl. VAT, free shipping within the EU

Ideal for groups & nurseries

Large ship made of 48 RIWI building blocks

48 Blocks

Mega Set

Perfect for: 4+ children · playgroup · nursery
What you can build: Giant ship, whole city, mega course

€399.95~~€499.95~~

Now €8.33 / block incl. VAT, free shipping within the EU

💡 Our recommendation for most families: the Family Set with 24 blocks — big enough for real caves and towers, quickly tidied away when playtime's over. For playgroups, nurseries and large rooms, go for the Mega Set with 48 blocks.

Real play“Less watching. More building.”

No screen ban. Just a better offer.

We're not against screens. We're for what happens when they're off. Kids don't need another rule — they need something they'd rather do.

Build, move, try out ideas, tear it all down again: real play that draws them in all on its own.

Active play — building, climbing, tumbling
No blueprint: something new every time
So absorbing that no one asks for the tablet

Why RIWI® came to be

Built from a childhood dream.

Two friends. One memory. Towers to the ceiling. The floor is lava. Building caves and disappearing into them for hours — no instructions, no batteries, no end. It was the best toy of our childhood. And you couldn't buy it anywhere.

Today kids get toys with instructions, fixed rules and one right solution. Creativity at the push of a button. Play by the manual. That very freedom was what we missed — so we built the toy we'd have wished for back then.

This is RIWI®. #RaisingBuilders

The RIWI® founders Roland (left) and Nicola (right) beside a tower of RIWI building blocks

Roland & Nicola — founded RIWI® in 2017

All reviews

What some of our 85,000+ parents say.

Over 95 % of families surveyed say: RIWI® is their kids' favourite toy.

Combo offer — 20 % off the Play Sofa Set

24 XXL building blocks Building without limits

2-in-1 Play Sofa & storage set Build first, then sit on it

By day a cave, tunnel and ship. By evening the same blocks become the comfiest seat in the house.

Build. Play. Sit.

The Play Sofa combo

One set that becomes anything — plus the covers that turn it into a sofa by evening and stow the blocks inside. A playground by day, tidied away by night.

24 XXL building blocks€239.95
2-in-1 Play Sofa & storage setfrom €109.95

Combo price€327.91

€349.90 You save €21.99

incl. VAT · Free shipping within the EU · DPD/UPS · 3–5 business days · washable covers

For every child“One set. Every age. Every day.”

Every age. Different ideas. The same blocks.

The four-year-old builds a cave. The eight-year-old engineers a bridge. No one argues over whose toy it is — because it's whatever they're making of it right now.

One purchase that makes sense for the whole family — for years.

Grows with them — from 3 to well over 10 years
Siblings build together — or side by side
Replaces the pile of toys that each do just one thing

For you too“They build. You get a minute.”

Your minute of calm is built in.

When kids are deep in building, they're absorbed — not entertained, absorbed. That's the moment the coffee stays warm, the book gets opened, the bath actually happens.

Not as a reward. Built in from the start.

Play that kids start all on their own
Soft, light blocks they can carry and stack themselves
Quiet material — no clatter, no beeping

Why RIWI®?

This is what makes RIWI® different.

🏗️

Structures you can go inside

Kids build caves, castles and tunnels they can actually crawl into.

📵

Less screen time

When the blocks come out, the tablet disappears. Every. Single. Time.

📅

Played with daily — for years

Not the toy that ends up in the corner after a week. RIWI® grows with them.

🇪🇺

Made in Europe · TÜV Austria certified

Our own factory in Europe. Certified to EN 71 (parts 1–3). Holds up to 110 kg. Washable. Built to last.

🎨

No rules, no blueprint

Pure imagination every time — there's no manual for fun.

👨‍👩‍👧

The whole family builds along

Parents build too — real time together, far from the screen.

Good to know

Frequently asked questions

From what age are RIWI® building blocks suitable?+

From 3 years. The blocks are light enough for three-year-olds to carry and stack on their own — and open-ended enough to stay exciting at 10, too.

Are the blocks safety-tested?+

Yes — TÜV Austria certified to EN 71 (parts 1–3). Soft PU foam, no hard edges, no harmful substances.

How do the blocks hold together?+

They are stacked freely — shape, size and material give the structures their hold while still letting kids rebuild them in seconds. No instructions, no connectors, no right solution.

Do they really hold an adult?+

Every block holds up to 110 kg — so the sofa you build carries you to the bedtime story, too.

How are the blocks delivered?+

Vacuum-compressed, with DPD or UPS. Free shipping within the EU, 3–5 business days. Once unpacked, the blocks return to their full shape.

How do I clean the blocks?+

The blocks are washable at 30 °C and dry lying flat — the velour and Play Sofa covers can go in the machine.

Set it out. Let them go.

An open-ended set. Every age from 3 years. 85,000+ parents in over 30 countries trust RIWI®.

Free shipping within the EU
TÜV Austria certified to EN 71
Made in Europe
Holds up to 110 kg
30-day money-back guarantee

Choose your set

RIWI® XXL Building Blocks

Building blocks kids love.