---
product_id: 78666308
title: "Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls"
brand: "rainbow toyfrog"
price: "€ 156.60"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/78666308-straw-constructor-stem-building-toys-800-pcs-colorful-interlocking-plastic
store_origin: HR
region: Croatia
---

# 20 cm flexible straws, customizable length Sturdy storage box for easy cleanup 800 colorful interlocking pieces Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls

**Brand:** rainbow toyfrog
**Price:** € 156.60
**Availability:** ✅ In Stock

## Summary

> 🚀 Build brilliance, one straw at a time!

## Quick Answers

- **What is this?** Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls by rainbow toyfrog
- **How much does it cost?** € 156.60 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/78666308-straw-constructor-stem-building-toys-800-pcs-colorful-interlocking-plastic)

## Best For

- rainbow toyfrog enthusiasts

## Why This Product

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

## Key Features

- • **STEM Skills in Action:** Boost engineering, math, and critical thinking through hands-on construction play.
- • **Flexible & Customizable:** Straws bend and can be cut to size, enabling unique, dynamic designs every time.
- • **Organized & Ready to Play:** Comes with a durable storage box to keep your creative space clutter-free.
- • **Endless Creative Possibilities:** Build forts, rockets, bridges & more with 800 vibrant pieces that spark imagination.
- • **Perfect Gift for Future Innovators:** Ideal for kids 3+ to develop motor skills and scientific curiosity in a fun way.

## Overview

The Straw Constructor STEM Building Toys set includes 800 colorful, flexible plastic straws and connectors designed for children aged 3 and up. This educational construction kit encourages creativity, critical thinking, and STEM learning by allowing kids to build a variety of models such as forts, rockets, and bridges. The straws are 20 cm long and can be cut to customize designs. Packaged in a sturdy storage box, it’s perfect for organized play and makes an excellent gift to support early development of motor skills and scientific reasoning.

## Description

We believe the best playthings are often simple concepts that inspire children to come up with their own twists. with everything we creat,we hope to encourage: free play imagination, discovery, creativity, learning.  Our high simulation toy is designed for aiding in the development of kids' physical and mental abilities, which is a good choice for kids to grow up. Build a fort, rocket, boat, tower, tunnel or bridge! design your own scientific model, or create a unique contraption. The straws fit snuggly on the connectors, but are flexible so you can build arches and tubes.  Suitable for over 3 year old kid.

## Features

- Includes 800 pieces. Create amazing models using the flexible straws and connectors!Great rainy day activities for kids.
- PRACTICE MAKES PERFECT! Help Support Your Child With Early Experiences Involving: Engineering, Construction, Critical Thinking, Reasoning, Mathematics, Science, & Simple Mechanics. Invest in Your Child's Future Today!
- Size: Straws 20 cm in length 7mm wide.
- Easy to build a lot of fun. You can use scissors to cut the straws to be any size you want.
- Packed with sturdy storage box, easy to clean and keep in storage. Ideal for birthday gifts, kids party supply , classroom education material, kindergarten manipulatives, daycare,preschool toy building sets.It is the best Christmas gift sets for children.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Additional Features | 800 straws |
| Age Range Description | Kid |
| Asin | B07FD7JCNN |
| Best Sellers Rank | #69,645 in Toys & Games (See Top 100 in Toys & Games) #2,150 in Toy Building Sets |
| Brand Name | RAINBOW TOYFROG |
| Color | Multicolor |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.7 4.7 out of 5 stars (320) 4.7 out of 5 stars |
| Educational Objective | Imagination Development, Reasoning, Shape Recognition |
| Manufacturer | RAINBOW TOYFROG |
| Manufacturer Minimum Age Months | 36 |
| Manufacturer Part Number | straw-800 |
| Material Type | Plastic |
| Model Name | Straw Constructor |
| Model Number | 839-2 |
| Model Year | 2021 |
| Number Of Pieces | 800 |
| Number Of Players | 1 |
| Operation Mode | Manual |
| Power Source | Manual |
| Set Name | Straw Constructor Super Deluxe |
| Size | 800 in box |
| Theme | Educational- |
| Toy Building Block Type | Interlocking Toy Building Block |

## Images

![Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls - Image 1](https://m.media-amazon.com/images/I/81oL5Wpe06L.jpg)
![Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls - Image 2](https://m.media-amazon.com/images/I/61jlp0xiEHL.jpg)
![Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls - Image 3](https://m.media-amazon.com/images/I/415w+YVUj-L.jpg)
![Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls - Image 4](https://m.media-amazon.com/images/I/61D3VwcCrUL.jpg)
![Straw Constructor STEM Building Toys 800 pcs-Colorful Interlocking Plastic Enginnering Toys- Fun- Educational- Safe for Kids- Develops Motor Skills-Construction Blocks- Best Gift for Boys and Girls - Image 5](https://m.media-amazon.com/images/I/6138QlZsn6L.jpg)

## Questions & Answers

**Q: Are these hard to click into connector?**
A: They don't actually "click" on to the connector.  The connector fits snugly into the sturdy straw pieces.  They're easy to connect, and stay together until pulled apart.

**Q: Happy Holidays. How many straws are there from the 800 pc set?**
A: Too many to count.  My granddaughter makes things out of this set all the time but they are not sturdy enough to make a fort with a sheet cover.

**Q: Are they sturdy enough for rough kids?**
A: Yes they are. My kids are rough and none have broken.

**Q: Does it come with a storage bin?**
A: Ours did not but it did come with a plastic zipper bag that stores them all perfectly and has lasted for years now.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, creative, stimulating
*by  on Reviewed in the United States May 5, 2025*

Great storage case Wonderful fun and creative for the kiddos. Keeps them occupied thinking of fun things to make.

### ⭐⭐⭐⭐⭐ Excellent purchase.
*by  on Reviewed in the United States July 27, 2022*

This was for my eight-year-old grandson's birthday. Out of all his gifts, this was the first thing he wanted to create something with. I'm not sure why others had problems, it's not built at NASA. The long pieces are slightly bendable which really was a plus with some projects he put together. I would have worried more if they were stiff plastic sticks if they broke and splintered. The bigger the creation, the softer plastic did bend a little due to the overall weight. He made one design using every stick that was big enough to be a wall divider. Obviously, that one did tip over, but it made it more fun seeing how far he could go. It's great for learning balance and leverage and just good hand-eye coordination. He has a six-year-old brother that also plays with it. I don't remember the age range, but with parental help, younger kids can enjoy it too. It's really a good gender-neutral toy...both boys and girls seem to have fun with it. There are enough pieces to divide and let several kids make their own creations. Loved it!I put 4 stars for easy to assemble for children younger than 7-8. And 4 stars for sturdiness for those bigger creations that might be too top heavy etc.

### ⭐⭐⭐⭐⭐ Kids love this
*by  on Reviewed in the United States February 17, 2021*

My kids LOVE this building set! It's great because they can build things that they can fit inside of, crawl through, and even wear (silly helmets, ect). This is a really fun toy. The sticks are basically thick straws. they are relatively easy use, but if they get bent and creased than they will always bend in that spot, just like a plastic drink straw.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-17*