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Clever Up! Building Block System 4.0

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Original Price $149.99
Current Price $129.99

✔️Free Shipping to 48 US States

✔️Made from sustainably sourced wood

✔️No Sales Tax Charged to any US State except AZ

✔️Call us with any Questions

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Dive into HABA's Clever Up! 4.0 Building System, a glorious universe of wooden blocks.

We're not just talking about your everyday wooden building blocks; these babies let your tiny architects build, bridge, and balance to their heart's content. 🌈 Splash of color? Check, thanks to our vibrant balls. Intricate roofs and designs? Oh, we've got triangular prisms for that!

But wait, there's more:

🧠 Spark that imagination with clear, simple shapes.

🔍 Decode the magic of math and physics - think movement, balance, and a whole lotta momentum!

🌐 Start 'em young with a taste of digital thinking.

🎉 Celebrate those budding spatial, logical, and abstract thinking skills.

✋ Enhance fine motor skills, hand-eye coordination, and a sprinkle of self-confidence.

 Clever-Up! 4.0 brings you a whopping 160 pieces, an enlightening educational booklet, and a chic cotton storage bag. And hey, those cubes? A perfect 1 ¾" x 1 ¾" x 1 ¾". Ideal for munchkins aged 1 and up!

Growing tots? No problem! Begin their journey with Clever Up! 1.0 and watch in awe as they level up, reaching the pinnacle of Clever Up! 4.0.

🎈 Every set boasts an arsenal of tools (read: snazzy storage bag and colorful guide) to help you supercharge their math, geometry, and even physics prowess.

Parents, gift your child endless screen-free fun, and sip that tea in peace. 🍵 Dive in now!

Why Buy From Us

We know you have a lot of options when it comes to buying play equipment online.
What makes Extreme Kids World different isn’t just what we sell — it’s how we help you choose.


We Specialize in Play That Actually Works

Extreme Kids World specializes in outdoor playsets, trampolines, indoor play equipment, and sensory room equipment for high-energy and sensory-seeking kids.

We help families, grandparents, schools, and therapists choose play equipment that:

  • Encourages real movement (not more screen time)

  • Supports sensory regulation, focus, and confidence

  • Fits their space, lifestyle, and child’s needs

Play should make life easier and more joyful — not more overwhelming. We’re here to help make that happen.


We’re Curators, Not a Big-Box Store

We don’t try to carry everything.
We intentionally curate products that meet our standards for safety, durability, and real-world use.

Every item we sell is chosen because it:

  • Solves a specific problem (energy burn, regulation, limited space)

  • Works for a clearly defined age range or use case

  • Holds up to daily play — not just the first few weeks

That means fewer confusing choices and recommendations you can trust.


How We Help Families Choose the Right Equipment

Families come to Extreme Kids World because we help them think through the details that actually matter, including:

  • Yard size or indoor space constraints

  • Child age, ability, and energy level

  • Sensory needs and regulation goals

  • Indoor vs outdoor play priorities

Instead of guessing or buying something that doesn’t work, you get guidance from a team that works with play equipment every day.


Authorized Brands We Trust & Recommend

Extreme Kids World is an manufacturer authorized retailer for a carefully selected group of manufacturers we trust and recommend. Each brand we carry aligns with our focus on movement, regulation, safety, and long-term value.

Our current brand partners include:

ActivPlay
Acon
Avenlur
BenchK
2MamaBees
Bijou Build
BrainRich
EverBlock
Enabling Devices
Experia
Fabrication Enterprises
GermBlock
Goodevas
Gorilla Playsets
Kidodido
KidWise
PlayMor
PlayStar Wooden Playsets
Skywalker Trampolines
SportsPlay
Swing Kingdom
TFH Special Needs Toys
United Fiber Optic Lighting
Wesco NA
Whitney Brothers
Wood & Hearts

Being an authorized retailer means:

  • Genuine products (no gray-market items)

  • Manufacturer warranties are fully honored

  • Proper support if you need help after purchase

We don’t add brands just to expand our catalog — each one earns its place because it solves a real play, movement, or sensory need.


Straightforward Shipping & Support

Buying play equipment should feel clear and stress-free.

  • Free shipping within the continental U.S. (unless otherwise noted)

  • 30-day easy returns

  • Responsive, knowledgeable customer service

  • Satisfaction guaranteed — if something arrives damaged or incorrect, we make it right

We’re a real business with real people behind every order.


Who We’re Best For

Extreme Kids World is a great fit if you’re:

  • Raising a high-energy or sensory-seeking child

  • Trying to reduce screen time through meaningful movement

  • Working with limited indoor or outdoor space

  • Buying for a school, daycare, or therapy environment

Who We May Not Be Right For

  • Shoppers looking for the cheapest option available

  • One-click, no-guidance purchases

If you value thoughtful recommendations and long-term value, you’re in the right place.


How This Connects to Who We Are

Everything on this page reflects who Extreme Kids World is and how we approach play.

If you’d like to learn more about:

  • Why we focus on high-energy and sensory-seeking kids

  • How our founder’s real-life parenting experience shapes our recommendations

  • The values that guide how we choose products

👉 Visit our About Us page to learn more about our story, mission, and approach to helping families choose play equipment that truly works.


Our Promise

We believe play should:

  • Help kids move their bodies

  • Support emotional regulation

  • Build confidence and independence

  • Make home and learning environments calmer — not more chaotic

That’s why families trust Extreme Kids World — and why we stand behind every recommendation we make.

Clever Up! Building Block System 4.0 Reviews

Description

Dive into HABA's Clever Up! 4.0 Building System, a glorious universe of wooden blocks.

We're not just talking about your everyday wooden building blocks; these babies let your tiny architects build, bridge, and balance to their heart's content. 🌈 Splash of color? Check, thanks to our vibrant balls. Intricate roofs and designs? Oh, we've got triangular prisms for that!

But wait, there's more:

🧠 Spark that imagination with clear, simple shapes.

🔍 Decode the magic of math and physics - think movement, balance, and a whole lotta momentum!

🌐 Start 'em young with a taste of digital thinking.

🎉 Celebrate those budding spatial, logical, and abstract thinking skills.

✋ Enhance fine motor skills, hand-eye coordination, and a sprinkle of self-confidence.

 Clever-Up! 4.0 brings you a whopping 160 pieces, an enlightening educational booklet, and a chic cotton storage bag. And hey, those cubes? A perfect 1 ¾" x 1 ¾" x 1 ¾". Ideal for munchkins aged 1 and up!

Growing tots? No problem! Begin their journey with Clever Up! 1.0 and watch in awe as they level up, reaching the pinnacle of Clever Up! 4.0.

🎈 Every set boasts an arsenal of tools (read: snazzy storage bag and colorful guide) to help you supercharge their math, geometry, and even physics prowess.

Parents, gift your child endless screen-free fun, and sip that tea in peace. 🍵 Dive in now!

Why Buy From Us

Why Buy From Us

We know you have a lot of options when it comes to buying play equipment online.
What makes Extreme Kids World different isn’t just what we sell — it’s how we help you choose.


We Specialize in Play That Actually Works

Extreme Kids World specializes in outdoor playsets, trampolines, indoor play equipment, and sensory room equipment for high-energy and sensory-seeking kids.

We help families, grandparents, schools, and therapists choose play equipment that:

  • Encourages real movement (not more screen time)

  • Supports sensory regulation, focus, and confidence

  • Fits their space, lifestyle, and child’s needs

Play should make life easier and more joyful — not more overwhelming. We’re here to help make that happen.


We’re Curators, Not a Big-Box Store

We don’t try to carry everything.
We intentionally curate products that meet our standards for safety, durability, and real-world use.

Every item we sell is chosen because it:

  • Solves a specific problem (energy burn, regulation, limited space)

  • Works for a clearly defined age range or use case

  • Holds up to daily play — not just the first few weeks

That means fewer confusing choices and recommendations you can trust.


How We Help Families Choose the Right Equipment

Families come to Extreme Kids World because we help them think through the details that actually matter, including:

  • Yard size or indoor space constraints

  • Child age, ability, and energy level

  • Sensory needs and regulation goals

  • Indoor vs outdoor play priorities

Instead of guessing or buying something that doesn’t work, you get guidance from a team that works with play equipment every day.


Authorized Brands We Trust & Recommend

Extreme Kids World is an manufacturer authorized retailer for a carefully selected group of manufacturers we trust and recommend. Each brand we carry aligns with our focus on movement, regulation, safety, and long-term value.

Our current brand partners include:

ActivPlay
Acon
Avenlur
BenchK
2MamaBees
Bijou Build
BrainRich
EverBlock
Enabling Devices
Experia
Fabrication Enterprises
GermBlock
Goodevas
Gorilla Playsets
Kidodido
KidWise
PlayMor
PlayStar Wooden Playsets
Skywalker Trampolines
SportsPlay
Swing Kingdom
TFH Special Needs Toys
United Fiber Optic Lighting
Wesco NA
Whitney Brothers
Wood & Hearts

Being an authorized retailer means:

  • Genuine products (no gray-market items)

  • Manufacturer warranties are fully honored

  • Proper support if you need help after purchase

We don’t add brands just to expand our catalog — each one earns its place because it solves a real play, movement, or sensory need.


Straightforward Shipping & Support

Buying play equipment should feel clear and stress-free.

  • Free shipping within the continental U.S. (unless otherwise noted)

  • 30-day easy returns

  • Responsive, knowledgeable customer service

  • Satisfaction guaranteed — if something arrives damaged or incorrect, we make it right

We’re a real business with real people behind every order.


Who We’re Best For

Extreme Kids World is a great fit if you’re:

  • Raising a high-energy or sensory-seeking child

  • Trying to reduce screen time through meaningful movement

  • Working with limited indoor or outdoor space

  • Buying for a school, daycare, or therapy environment

Who We May Not Be Right For

  • Shoppers looking for the cheapest option available

  • One-click, no-guidance purchases

If you value thoughtful recommendations and long-term value, you’re in the right place.


How This Connects to Who We Are

Everything on this page reflects who Extreme Kids World is and how we approach play.

If you’d like to learn more about:

  • Why we focus on high-energy and sensory-seeking kids

  • How our founder’s real-life parenting experience shapes our recommendations

  • The values that guide how we choose products

👉 Visit our About Us page to learn more about our story, mission, and approach to helping families choose play equipment that truly works.


Our Promise

We believe play should:

  • Help kids move their bodies

  • Support emotional regulation

  • Build confidence and independence

  • Make home and learning environments calmer — not more chaotic

That’s why families trust Extreme Kids World — and why we stand behind every recommendation we make.