---
product_id: 643531861
title: "NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit"
brand: "blue marble"
price: "€ 460.19"
currency: EUR
in_stock: true
reviews_count: 5
category: "Blue Marble"
url: https://www.desertcart.hr/products/643531861-national-geographic-kids-fort-building-kit-70-piece-indoor-fort
store_origin: HR
region: Croatia
---

# Two pole lengths for dynamic builds Flex-Tech bendable hubs 70 versatile pieces NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit

**Brand:** blue marble
**Price:** € 460.19
**Availability:** ✅ In Stock

## Summary

> 🏰 Build your kingdom of creativity—because ordinary forts are so last season!

## Quick Answers

- **What is this?** NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit by blue marble
- **How much does it cost?** € 460.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/643531861-national-geographic-kids-fort-building-kit-70-piece-indoor-fort)

## 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

- • **Grow with Your Imagination:** Perfect for ages 4+, this kit evolves with your child’s creativity and engineering curiosity.
- • **Step-by-Step STEM Learning:** Includes illustrated guide to build confidence and inspire independent design skills.
- • **Epic Forts, Endless Possibilities:** 70-piece kit fuels limitless creative play and engineering challenges.
- • **Durable & Premium-Quality Materials:** Sturdy poles and secure clips ensure your child's fort stands strong through every adventure.
- • **Flex-Tech Connectors for Ultimate Flexibility:** Bendable hubs enable dome, pyramid, and custom fort shapes with ease.

## Overview

The National Geographic Kids Fort Building Kit is a 70-piece indoor construction set designed for children ages 4 and up. Featuring innovative Flex-Tech bendable connectors and sturdy poles in two lengths, it allows kids to build a variety of forts—from domes to pyramids—with secure clips for blanket coverings. This STEM-focused kit includes an illustrated guide to teach basic engineering concepts, encouraging imaginative play and spatial awareness. Durable and high-quality, it’s perfect for growing creativity and hands-on learning.

## Description

Kids can build the coolest forts ever with the National Geographic 70-piece Epic Fort Building Kit! This revolutionary fort-building system includes our innovative Flex-Tech bendable connectors that make it easy for kids to construct a variety of playhouse structures, from domes and pyramids to rocket ships and beyond! Kit includes: 36 building poles (32 long, 4 short) 9 - 2-point Flex-Tech connectors 5 - 4-point Flex-Tech connectors 4 - 5-point Flex-Tech connectors 4 - 6-point Flex-Tech connectors 8 - 8-point Flex-Tech connectors 4 sheet clips Illustrated Building Guide The sturdy, tight-fit poles come in two different lengths to expand construction options and ensure strong, kid-tested builds. Plus, a wide variety of patented Flex-Tech connectors enhances the stability of structures and adds even more creative ways for kids to build! This 70-piece set includes step-by-step, illustrated instructions that explain fort building basics, along with how to build a pyramid and an airplane. These primary, guided builds give kids the confidence and experience they need to invent their own fort designs. Four clips are also included for household fort coverings like blankets or sheets (not included). The possibilities are truly endless once kids start to get creative, taking imaginative play to a new level of fun! The National Geographic Epic Forts Kit grows with your family too—it’s great for younger kids who love make-believe play, as well as older kids seeking endless engineering challenges and creative ways to explore their inventiveness. Order the National Geographic Epic Forts kit today and watch your kids take fort building to the next level! We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations.

Review: Not enough pieces - I purchased 2 boxes and still not enough pieces for my 8yo grandson to build a decent fort.
Review: Thoughtful design and great quality - My kids are very into building “houses”. We bought two sets of these and they have really enjoyed them. The designs are well thought of, with various types of connectors to make sturdy structures as far as imagination leads. Quality is top notch as National Geography products always have been.

## Features

- BUILD THE COOLEST FORTS EVER - With 70 pieces, kids can build forts that are nothing less than epic! This fort building kit makes it easy to build an indoor fort with endless configurations. It's perfect for creative building and play!
- BENDABLE PIECES MAKE BUILDING EASY - The Flex-Tech hubs in this fort kit hold the poles tight and flex, allowing kids to build tents, castles, even dome-shaped forts! Kids can let their imaginations run wild as they construct the perfect play fort.
- DURABLE, PREMIUM-QUALITY COMPONENTS - Sturdy poles in two different lengths work with the Flex-Tech hubs to create a number of dynamic structures, with 4 included clips that make it easy to cover the fort with a sheet or blanket (not included).
- GROWS WITH YOUR KIDS – Kids will learn the basics of connecting pieces from the included Building Guide, including step-by-step instructions for building a pyramid and an airplane, so they can build with confidence before trying their own designs!
- HIGH-QUALITY EDUCATIONAL TOYS - We're proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we'll make things right!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BQX2TSWH |
| Age Range Description | 4 years and up |
| Battery Types | No batteries required |
| Best Sellers Rank | #335,317 in Toys & Games ( See Top 100 in Toys & Games ) #5,463 in Toy Building Sets |
| Brand | Blue Marble |
| Customer Reviews | 3.9 out of 5 stars 125 Reviews |
| Educational Objective | Engineering, Spacial Awareness, STEM |
| Global Trade Identification Number | 00810070620813 |
| Included Components | Fort Building Kit Poles and Connectors |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required | Yes |
| Item Dimensions | 37.5 x 11.4 x 30.5 Centimeters |
| Item Type Name | Kids Fort Building Kit - 70-Piece Indoor Fort Builder for Kids |
| Item Weight | 1.92 Kilograms |
| Manufacturer | JMW Sales, Inc. |
| Manufacturer Part Number | RTFORT70 |
| Material | Plastic |
| Maximum Recommended age | 1188.00 |
| Minimum Recommended age | 48 |
| Model Number | RTFORT70 |
| Operation Mode | Manual |
| Power Source | manual |
| Set Name | National Geographic Epic Forts Kit - 70 Piece |
| Theme | Imaginative Play |
| UPC | 810070620813 |
| Unit Count | 70 Count |

## Product Details

- **Brand:** Blue Marble
- **Material:** Plastic
- **Style:** Compact
- **Product Dimensions:** 37.5D x 11W x 30.5H Centimeters
- **Theme:** Imaginative Play
- **Item Weight:** 1.92 Kilograms
- **Frame Material:** Plastic
- **Age Range (Description):** 4 years and up
- **Assembly Required:** Yes
- **Global Trade Identification Number:** 00810070620813

## Images

![NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit - Image 1](https://m.media-amazon.com/images/I/917gwhTmVXL.jpg)
![NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit - Image 2](https://m.media-amazon.com/images/I/91rROFq4a1L.jpg)
![NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit - Image 3](https://m.media-amazon.com/images/I/81kYzZqUf3L.jpg)
![NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit - Image 4](https://m.media-amazon.com/images/I/81P8r3zr+OL.jpg)
![NATIONAL GEOGRAPHIC Kids Fort Building Kit - 70-Piece Indoor Fort Builder - Creative Play, STEM Building Toy, Building Kit for Kids 6-10, Blanket Fort Kit - Image 5](https://m.media-amazon.com/images/I/81noLvwjVeL.jpg)

## Customer Reviews

### ⭐⭐⭐ Not enough pieces
*by C***N on 5 January 2024*

I purchased 2 boxes and still not enough pieces for my 8yo grandson to build a decent fort.

### ⭐⭐⭐⭐⭐ Thoughtful design and great quality
*by Y***G on 14 October 2023*

My kids are very into building “houses”. We bought two sets of these and they have really enjoyed them. The designs are well thought of, with various types of connectors to make sturdy structures as far as imagination leads. Quality is top notch as National Geography products always have been.

### ⭐⭐ Disappointed
*by K***Y on 15 February 2024*

It was a nice idea but when we tried to put it together it was flimsy and would stand up very good and was a challenge to put the pieces together as it kept falling apart. I ended up returning it

## Frequently Bought Together

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-29*