---
product_id: 638914563
title: "National Geographic Jumbo Cardboard Building Blocks – 30-Pc. Extra-Thick Cardboard Bricks for Kids, Build a Castle Play House, Indoor Playhouse, Large Building Blocks, Kids Giant Blocks"
brand: "blue marble"
price: "VT19080"
currency: VUV
in_stock: true
reviews_count: 8
category: "Blue Marble"
url: https://www.desertcart.vu/products/638914563-national-geographic-jumbo-cardboard-building-blocks-30-pc-extra-thick
store_origin: VU
region: Vanuatu
---

# 30-piece castle-themed set Extra-thick durable cardboard Includes educational castle guide National Geographic Jumbo Cardboard Building Blocks – 30-Pc. Extra-Thick Cardboard Bricks for Kids, Build a Castle Play House, Indoor Playhouse, Large Building Blocks, Kids Giant Blocks

**Brand:** blue marble
**Price:** VT19080
**Availability:** ✅ In Stock

## Summary

> 🏰 Unlock epic creativity with every block — build your kingdom today!

## Quick Answers

- **What is this?** National Geographic Jumbo Cardboard Building Blocks – 30-Pc. Extra-Thick Cardboard Bricks for Kids, Build a Castle Play House, Indoor Playhouse, Large Building Blocks, Kids Giant Blocks by blue marble
- **How much does it cost?** VT19080 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/638914563-national-geographic-jumbo-cardboard-building-blocks-30-pc-extra-thick)

## Best For

- blue marble enthusiasts

## Why This Product

- Trusted blue marble brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Kid-Safe:** Extra-thick cardboard withstands rough play and toddler steps.
- • **Complete Kingdom Kit:** Includes drawbridge and two crowns for immersive role-play.
- • **Educational Playtime:** Comes with a Learning Guide to spark curiosity about medieval castles.
- • **Award-Winning Quality:** From Blue Marble, Toy of the Year winner, ensuring premium fun.
- • **Build Your Dream Castle:** 30 jumbo blocks in varied shapes let creativity reign supreme.

## Overview

National Geographic Jumbo Cardboard Building Blocks is a 30-piece set of extra-thick, durable cardboard bricks designed for kids aged 3 to 8. The castle-themed blocks include varied shapes, a drawbridge, and crowns, encouraging imaginative play and learning with an included educational guide. Lightweight yet sturdy, these award-winning blocks foster creativity and hands-on fun while standing up to active play.

## Description

Buy National Geographic Jumbo Cardboard Building Blocks – 30-Pc. Extra-Thick Cardboard Bricks for Kids, Build a Castle Play House, Indoor Playhouse, Large Building Blocks, Kids Giant Blocks: Everything Else - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Don’t bother looking any further, BUY THESE NOW!!! - We got these as a birthday present for my daughter who loves building with blocks and wanted something bigger. SHE ABSOLUTELY LOVES THEM!!!! She plays with them all the time and has a blast! The color/stones are perfect, so so much better than the basic blue, red, yellow bricks I used to play with as a kid. My daughter is 3 and has stepped on a few of them before and had no issue with them breaking or deforming so I would say they are pretty durable. They stack well and you can make a different set up every time you play. I love that some of them have windows with torches on them and that there are four different sizes included (big rectangle, smaller rectangle, square, and triangle!!!). The set also came with two paper crowns, a jaw bridge (cardstock and high quality), and a little card with information about medieval castles in Europe! They do come flat and need to be assembled which was a little time consuming, but the instructions were easy to follow and once you get the hang of it you can breeze right through the building process. I HIGHLY recommend these over the normal, boring blue, red, yellow cardboard blocks- you won’t be disappointed. The way my daughter’s imagination runs wild while building with these brings me so much joy. To me these were definitely worth the money that we paid and I would do it again and again!!!
Review: Great gift - We love these blocks. Pretty easy to assemble and quick if you have help. Fun to build tunnels and castles and colorful for kids to learn. Really happy with the durability my 40lb 2 year old steps on them and they are holding up great.

## Features

- BUILD YOUR OWN CASTLE - The jumbo building blocks in this kit sport a castle theme, so kids can build their very own castle play house! Kids can let their creativity shine as they create unique, custom castles with ease!
- SAFE, SECURE, AND DURABLE - These blocks are designed to hold together securely when assembled, eliminating frustration! Made from durable cardboard, they're also safe, lightweight, and durable so kids can explore any design they can think of!
- ENDLESS BUILDING POSSIBILITIES - These high-quality building blocks are a great way for kids to explore their creativity as they design and build their very own castle play house! They'll also learn about castles with the included Learning Guide!
- EVERYTHING INCLUDED - Kids can build the ultimate castle playhouse with the components in this kit! In addition to 27 blocks in different shapes and sizes, they'll get a drawbridge and two crowns to faithfully lead their new kingdom!
- AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CY3DXW6V |
| Best Sellers Rank | #17,137 in Toys & Games ( See Top 100 in Toys & Games ) #1,952 in Toy Building Sets |
| Customer Reviews | 4.8 4.8 out of 5 stars (217) |
| Item Weight | 6.31 pounds |
| Item model number | NGCASTLE30 |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer recommended age | 36 months - 8 years |
| Release date | April 25, 2024 |

## Product Details

- **Brand:** Blue Marble
- **Age Range (Description):** 3 years and up
- **Color:** Blue
- **Theme:** Castles
- **Cartoon Character:** Castles

## Images

![National Geographic Jumbo Cardboard Building Blocks – 30-Pc. Extra-Thick Cardboard Bricks for Kids, Build a Castle Play House, Indoor Playhouse, Large Building Blocks, Kids Giant Blocks - Image 1](https://m.media-amazon.com/images/I/91Hw8SsYVqL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Don’t bother looking any further, BUY THESE NOW!!!
*by C***E on March 9, 2025*

We got these as a birthday present for my daughter who loves building with blocks and wanted something bigger. SHE ABSOLUTELY LOVES THEM!!!! She plays with them all the time and has a blast! The color/stones are perfect, so so much better than the basic blue, red, yellow bricks I used to play with as a kid. My daughter is 3 and has stepped on a few of them before and had no issue with them breaking or deforming so I would say they are pretty durable. They stack well and you can make a different set up every time you play. I love that some of them have windows with torches on them and that there are four different sizes included (big rectangle, smaller rectangle, square, and triangle!!!). The set also came with two paper crowns, a jaw bridge (cardstock and high quality), and a little card with information about medieval castles in Europe! They do come flat and need to be assembled which was a little time consuming, but the instructions were easy to follow and once you get the hang of it you can breeze right through the building process. I HIGHLY recommend these over the normal, boring blue, red, yellow cardboard blocks- you won’t be disappointed. The way my daughter’s imagination runs wild while building with these brings me so much joy. To me these were definitely worth the money that we paid and I would do it again and again!!!

### ⭐⭐⭐⭐⭐ Great gift
*by S***H on January 9, 2026*

We love these blocks. Pretty easy to assemble and quick if you have help. Fun to build tunnels and castles and colorful for kids to learn. Really happy with the durability my 40lb 2 year old steps on them and they are holding up great.

### ⭐⭐⭐⭐⭐ Takes me back to the 90s
*by K***A on December 23, 2025*

These are great value for what you pay for them, the size is great the color is cool like a castle they stack easy. They're easy to put together and they haven't fallen apart yet so I like the quality.

## Frequently Bought Together

- National Geographic Jumbo Cardboard Building Blocks – 30-Pc. Extra-Thick Cardboard Bricks for Kids, Build a Castle Play House, Indoor Playhouse, Large Building Blocks for Kids, Kids Giant Blocks
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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-19*