Will it great for kid 3yrs old?

I think it is fine for 3 years kids. But must with adult if your kid still putting thing in mouth.

What size are the steel balls?

They are approximately 3/8 - 1/2 inch about the size of a dime

Strong magnetism for the balls?

Yes, strong magnetism. My grandsons who are 2 and 4 play with them endlessly. Their bunk bed has metal frame and they build on their too.

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ELONGDI Magnetic Building Blocks, [ 132 Pieces ] Lengthen Building Sticks Set, Magnet Stem Toys Set Non-Toxic Building 3D Puzzle Boys Toys for Kids and Adult

ELONGDI Magnetic Building Blocks, [ 132 Pieces ] Lengthen Building Sticks Set, Magnet Stem Toys Set Non-Toxic Building 3D Puzzle Boys Toys for Kids and Adult

Product ID: 80246032

🌈Vibrant multicolor design

🎒Portable string bag included

🧲132-piece magnetic STEM set

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MX$1610

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Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧩 Build brilliance anywhere, anytime — don’t miss out on the magnetic magic!

ON THE GO PLAY - Compact string bag keeps pieces organized for travel or quick cleanups
SAFE CERTIFIED FUN - ASTM certified, BPA-free, odorless PP material built for rough play
FAMILY BONDING THROUGH PLAY - Engage kids and adults alike in collaborative, imaginative building sessions
STEM LEARNING MADE EXCITING - Boosts spatial reasoning, hand-eye coordination & early math skills
ENDLESS CREATIVE POSSIBILITIES - 132 durable magnetic sticks & steel balls spark limitless 3D designs

The ELONGDI Magnetic Building Blocks set features 132 high-quality, non-toxic pieces including magnetic sticks and steel balls designed for durable, safe play. Certified ASTM compliant and BPA-free, this vibrant multicolor STEM toy enhances spatial reasoning, creativity, and fine motor skills for kids aged 6 and up. Its included portable string bag ensures easy storage and travel, making it perfect for family bonding and educational fun both indoors and on the go.

Specifications

ASIN	B07DB7HBRC
Additional Features	Non Toxic
Age Range Description	Kid
Best Sellers Rank	#35,900 in Toys & Games ( See Top 100 in Toys & Games ) #283 in Toy Magnetic Building Sets #3,506 in Games & Accessories
Brand Name	ELONGDI
Color	Multicolor
Customer Package Type	Standard Packaging
Customer Reviews	4.7 4.7 out of 5 stars (836)
Educational Objective	Counting Skills, Creative Thinking, Hand-Eye Coordination, STEM, Spatial Reasoning
Is Assembly Required	No
Item Dimensions	2 x 22.8 x 25 inches
Item Type Name	Elongdi Magnetic Building Blocks, [ 132 Pieces ] Lengthen Building Sticks Set, Magnet Stem Toys Set Non-Toxic Building 3D Puzzle Boys T
Manufacturer	Elongdi
Manufacturer Maximum Age (MONTHS)	960
Manufacturer Minimum Age (MONTHS)	72.0
Manufacturer Part Number	E-144
Material Type	Polypropylene
Model Name	ELONGDI Magnetic Building Blocks, Lengthen Building Sticks Set, Magnet Stem Toys Set Non-Toxic Building 3D Puzzle Boys Toys for Kids and Adult
Model Number	E-144
Model Year	2021
Number of Pieces	132
Operation Mode	Manual
Power Source	No Power Source
Set Name	ELONGDI Magnetic Building Blocks Set
Size	22.8 inches (W) x 2 inches (L) x 25 inches (H)
Supported Battery Types	No batteries required
Target Audience	Children
Theme	Geometric
Toy Building Block Type	Magnetic Toy Building Block
UPC	756244226422
Unit Count	132.0 Count

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