---
product_id: 226970679
title: "RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+"
brand: "riwi"
price: "R34633"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Riwi"
url: https://www.desertcart.co.za/products/226970679-riwi-giant-foam-building-blocks-for-kids-48-piece-set
store_origin: ZA
region: South Africa
---

# Supports up to 240 lbs 28-inch jumbo blocks Machine washable foam RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+

**Brand:** riwi
**Price:** R34633
**Availability:** ✅ In Stock

## Summary

> 🏰 Build Big, Play Clean, Stay Safe – The Ultimate Giant Foam Block Experience!

## Quick Answers

- **What is this?** RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ by riwi
- **How much does it cost?** R34633 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/226970679-riwi-giant-foam-building-blocks-for-kids-48-piece-set)

## Best For

- riwi enthusiasts

## Why This Product

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

## Key Features

- • **Hygiene Meets Convenience:** The only giant foam blocks that are fully machine washable—say goodbye to stains and germs.
- • **Build Room-Sized Masterpieces:** Massive 28-inch blocks let your child create forts and castles bigger than ever before.
- • **Boost Creativity & Motor Skills:** Trusted by educators to develop spatial thinking, teamwork, and gross motor skills.
- • **Certified Safe for Peace of Mind:** ASTM F963 certified with soft edges and lightweight design, perfect for kids 3+.
- • **Unmatched Durability & Stability:** High-density foam with a high-friction surface supports climbing and sitting without collapsing.

## Overview

RIWI’s 48-piece Giant Foam Building Blocks set features jumbo 28 x 8 x 4 inch high-density foam blocks that support up to 240 lbs, are machine washable, and ASTM F963 certified for safety. Designed for kids ages 3+, these durable, soft-edged blocks foster creativity, motor skills, and teamwork, making them a favorite in homes and early learning centers across Europe.

## Description

desertcart.com: RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ : Toys & Games

Review: Not as great as the pictures - These aren't worth the price. Many of the ones in our package arrived dented and never fully expanded so they can't stack as advertised. They're also made from the foam you'd stuff saggy chairs with, and everything sticks to them. They're already looking a bit haggard one month in. They're impossible to clean which is a huge bummer. Lastly, they come with a smell you can taste for days. It took two weeks to be able to be in the same room even after airing the room out regularly. I have contemplated sending these back every day. But, they are not shipped by desertcart so you'd have to pay to ship all this back and I don't know how you'd manage to get them back in the boxes because they come vacuum packed. Overall, really disappointed by these.
Review: Not worth the money - Do the kids love them? Sure. Of course they do. But, they are absolutely overpriced. For some reason, I thought these would have a vinyl cover, except I was wrong. They are just foam. Dirt sticks to them. Also, babies/small kiddos take bites out of them since its just soft foam. You can, however, purchase covers for them, but they cost as much as the blocks themselves do. Absolutely not. Would not recommend.

## Features

- GIANT 28-INCH BLOCKS – This 48-piece set features truly jumbo foam blocks (28 x 8 x 4 inches each) – build forts, towers, castles, and hideouts taller than your kids. Not mini cubes: these are real, room-filling building blocks.
- DENSE, STURDY & BUILT TO LAST – Made from high-density foam with a unique high-friction surface, so structures hold together and stay standing. Supports up to 240 lbs – kids can sit, climb, and play without crushing the blocks.
- MACHINE WASHABLE – The only giant building blocks that go straight into your washing machine. No wiping, no stains, no germs – perfect for home, daycare, and preschool use.
- SAFE & CERTIFIED – Conforms to US Toy Safety Standard ASTM F963, independently lab-tested. Soft edges, lightweight design, zero hard parts – safe building fun for ages 3 and up.
- LOVED BY KIDS, TRUSTED BY TEACHERS – Develops gross motor skills, creativity, spatial thinking, and teamwork. Tested and recommended by early learning facilities. Proudly made in Europe with premium materials.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MTBSFY5 |
| Additional Features | Washable |
| Age Range Description | Kid |
| Best Sellers Rank | #530,673 in Toys & Games ( See Top 100 in Toys & Games ) #1,362 in Toy Stacking Block Sets #14,767 in Toy Building Sets |
| Brand Name | RIWI |
| Color | Blue,green,red |
| Customer Package Type | FFP |
| Customer Reviews | 3.6 out of 5 stars 76 Reviews |
| Educational Objective | Imagination Development |
| Item Dimensions | 27.56 x 7.87 x 3.94 inches |
| Item Weight | 16 kg |
| Manufacturer | RIWI buildit Kft. |
| Manufacturer Part Number | R4801 |
| Material Type | Foam |
| Model Name | R4801 |
| Model Number | R4801 |
| Model Year | 2016 |
| Number of Pieces | 48 |
| Operation Mode | manual |
| Size | Large |
| Target Audience | children. |
| Theme | Architecture |
| Toy Building Block Type | Stacking Toy Building Block |
| Unit Count | 1 Count |

## Images

![RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ - Image 1](https://m.media-amazon.com/images/I/51x+wmQ6jZL.jpg)
![RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ - Image 2](https://m.media-amazon.com/images/I/71wOEFz8ZbL.jpg)
![RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ - Image 3](https://m.media-amazon.com/images/I/81GPJsnMGeL.jpg)
![RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ - Image 4](https://m.media-amazon.com/images/I/71NPAvwQXwL.jpg)
![RIWI Giant Foam Building Blocks for Kids, 48-Piece Set – Jumbo Soft Blocks 28 Inch, Dense & Sturdy, Machine Washable, ASTM F963 Certified, Made in Europe – Building Toy Ages 3+ - Image 5](https://m.media-amazon.com/images/I/61suV4uS1gL.jpg)

## Customer Reviews

### ⭐ Not as great as the pictures
*by W***P on October 5, 2021*

These aren't worth the price. Many of the ones in our package arrived dented and never fully expanded so they can't stack as advertised. They're also made from the foam you'd stuff saggy chairs with, and everything sticks to them. They're already looking a bit haggard one month in. They're impossible to clean which is a huge bummer. Lastly, they come with a smell you can taste for days. It took two weeks to be able to be in the same room even after airing the room out regularly. I have contemplated sending these back every day. But, they are not shipped by Amazon so you'd have to pay to ship all this back and I don't know how you'd manage to get them back in the boxes because they come vacuum packed. Overall, really disappointed by these.

### ⭐⭐ Not worth the money
*by B***Y on March 16, 2022*

Do the kids love them? Sure. Of course they do. But, they are absolutely overpriced. For some reason, I thought these would have a vinyl cover, except I was wrong. They are just foam. Dirt sticks to them. Also, babies/small kiddos take bites out of them since its just soft foam. You can, however, purchase covers for them, but they cost as much as the blocks themselves do. Absolutely not. Would not recommend.

### ⭐⭐⭐⭐ Half of them are miscut and don’t stack.
*by J***E on January 23, 2022*

My son got these for a Birthday present and half of them are miscut. I had contact with the company and they responded and seemed like they’d help resolve it asked me to “wash them” which I did and they still came out the same as they went in. Since that email I’ve attempted to contact them several times but had no luck getting them replaced. Update - Perseverance win. They did end up sending out 18 new blocks. My son does LOVE THEM and uses them all the time.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-11-01*