---
product_id: 10036466
title: "SmartMax Start XL (42 pcs) STEM Magnetic Discovery Building Set Featuring Safe, Extra-Strong, Oversized Building Pieces for Ages 3+"
brand: "smartmax"
price: "C$10233"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/10036466-smartmax-start-xl-42-pcs-stem-magnetic-discovery-building-set
store_origin: NI
region: Nicaragua
---

# 42 pcs Safe for ages 3+ 60x weight capacity SmartMax Start XL (42 pcs) STEM Magnetic Discovery Building Set Featuring Safe, Extra-Strong, Oversized Building Pieces for Ages 3+

**Brand:** smartmax
**Price:** C$10233
**Availability:** ✅ In Stock

## Summary

> 🚀 Build Big, Dream Bigger!

## Quick Answers

- **What is this?** SmartMax Start XL (42 pcs) STEM Magnetic Discovery Building Set Featuring Safe, Extra-Strong, Oversized Building Pieces for Ages 3+ by smartmax
- **How much does it cost?** C$10233 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/10036466-smartmax-start-xl-42-pcs-stem-magnetic-discovery-building-set)

## Best For

- smartmax enthusiasts

## Why This Product

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

## Key Features

- • **Award-Winning Design:** Recognized for excellence in educational toys, perfect for budding architects!
- • **Endless Compatibility:** Mix and match with other SmartMax sets for limitless building adventures!
- • **Quality You Can Trust:** Crafted with high-quality materials, ensuring safe and durable playtime!
- • **STEM Learning Made Fun:** Ignite curiosity with colorful oversized pieces that introduce STEM concepts!
- • **Engineering Meets Creativity:** Watch your child's imagination soar as they build extraordinary structures!

## Overview

The SmartMax Start XL is a 42-piece STEM magnetic building set designed for children aged 3 and up. Featuring oversized, colorful bars and metal balls, this set encourages creativity and engineering skills while ensuring safety and durability. With a remarkable weight capacity and compatibility with other SmartMax sets, it offers endless opportunities for imaginative play.

## Description

SmartMaxStart XL (42 pcs) STEM Magnetic Discovery Building Set Featuring Safe, Extra-Strong, Oversized Building Pieces for Ages 3+

## Features

- STEM LEARNING FUN: SmartMax Start XL features colorful oversoze bars and metal balls for a super fun introduction to STEM concepts for young kids.
- ENGINEERING AND CREATIVITY: Designed for ages 3+, kids will be enthralled by the tactile process of clicking the bars and balls together. SmartMax magents can carry up to 60x their own weight…making extraordinary structures possible!
- SET INCLUDES: 42 colorful, oversized pieces, including extra strong bars and metal balls.
- ENDLESS PLAY: All SmartMax sets are compatible with each other. Kids can start building…and keep building.
- QUALITY AND SAFETY: Award-winning SmartMax Magnetic Discovery sets are build with high quality materials, including sonically welded bars.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 2 Pounds |
| Size | Mini |
| Item Dimensions | 22.38 x 2.38 x 13.88 inches |
| Number of Pieces | 42 |
| Theme | Architecture |
| Color | Multicolor |
| Manufacturer Minimum Age (MONTHS) | 36.0 |
| Special Features | Magnetic |
| Educational Objective | STEM |

## Images

![SmartMax Start XL (42 pcs) STEM Magnetic Discovery Building Set Featuring Safe, Extra-Strong, Oversized Building Pieces for Ages 3+ - Image 1](https://m.media-amazon.com/images/I/71iqNyZSNhL.jpg)

## Questions & Answers

**Q: what is the diameter of the magnetic balls?**
A: About 1.5 in, pretty much golf ball size

**Q: From the reviews, it looks like kids from 2 and up would enjoy these.  Any feedback on kids 5 to 7?**
A: Kids and adults enjoy these, in my experience.  (No, I do not work for the company that produces this, and I do not sell this or any other toy product.)

**Q: What size are the metal balls?**
A: I'm not sure of the exact size, but they do not pose a choking hazard for young children. I bought two sets for toddler classrooms. The children love them and they are safe to play with.

**Q: Does anyone know if these smart max pieces are compatible with the magformers version called “stick-o”s?**
A: The magnets should work together however the Smart Max are bigger and rounder.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Beyond amazing!!!
*by B***S on June 8, 2022*

I bought these SmartMac xl and then the Hauker 88 piece set for 33.99 alot tcheaper and over 2x the pieces and a tote. Im not good imagining dimensions and wanted big pieces, so i bought both.So both sets are good. The Hauker set is an amazing value but the pieces are tiny. Great for older kids, but for the 1-2 maybe even 3 year olds i would pick the SmartMax hand down. The smart max feel stronger and the magnets are at least 2x as strong but really easy to take apart- i dont know how they do it. Defintely worth the investment. My choice would be the smartmax because its worth the cost because they are bigger and stronger. I will say though that the balls on both sets seam to scratch easily. After less than 30 min of play balls from both sets have dings and the smartmax white ones have some black marks. Overall still amazing!!!!That said- the Hauker set is a great value and the pieces are quality and the magnets are strong and hold but arent as strong as the smartmax. So if your kids are older i would def go with Hauker set.

### ⭐⭐⭐⭐⭐ Excellent for a wide range of ages...
*by T***L on January 3, 2015*

These are great- they're naturally interesting and the magnets are strong enough that they stick "by accident", catching even the youngest child's attention and leading to further inspiration. We bought the 25-piece set and came back for more because they were such a hit with our 15-month old son. These are expensive, but a very well made and seemingly long-lived toy (I can imagine him still using them as a 5-year old... How many toys can make that claim?).* * * Edited to add: as he's gotten older, these have become a source of frustration. The bars only stick together if you match a cool color to a warm color, other than that they need a sphere as a connector. His toddler brain wants to fasten matching colored rods, and since he can't, this almost always ends in frustration and anger. Not a big deal, and something we will work through... but something to consider if your child is easily frustrated or has the tendency to need things to work in a very specific way.

### ⭐⭐⭐⭐⭐ Very innovative
*by M***N on February 24, 2013*

I have wanted to get these since my first born turned 1 now 2, well I got them for Christmas for both my kids & they love them. There are so many things they stick to not just each other, fridge, other toys they love trying to combine the colors & seeing what works & what doens't. My youngest 1 can grip them, no fear of choking since they are big, but light weight, very light weight. My oldest loves throwing the balls around >.< but its all fun, I actually love sitting with them & making shapes to help him learn colors/shapes. Lots of fun, I'm actually considering getting more of theses & there are some others that are actual shapes, but flat magnets I see lots of potential & fun. The price is worth it, especially for how much they get played with & great for multiple kids.

## Frequently Bought Together

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-03*