Would this be suitable for a highly precocious 4-year-old?

I would say yes most definitely. What my grandchildren enjoyed about this product is the cards to give them ideas of things that they can make with the blocks they found it very entertaining and it's been inspired in inspired creative and talking to them things if I following visual directions

Can you purchase more challenge cards?

I do not know but I would suggest that you try to email the company that makes this item you may be able to purchase on there site, Or try amazon maybe they have a generic type of card

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Learning Resources STEM Explorers Brainometry - 3D Puzzle Games for Kids, Kids Travel Games, Brain Teaser Puzzles, Pattern Memory Game, Brain Game Toys, Classroom Toys, 5 Year Old Boy and Girl Gifts

Product ID: 333379076

🎒Compact & portable design

📏10 double-sided challenge cards

🧩34 durable puzzle pieces

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€ 52.21

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In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧠 Unlock your child’s genius with hands-on STEM fun!

DURABLE ORGANIZED - Sturdy plastic pieces and coated cards come in a portable box, built to withstand everyday play and trips.
BOOST CRITICAL THINKING - Engages kids 5+ with STEM-based brain teasers that sharpen logic and pattern recognition.
HANDS ON INTERACTIVE PLAY - Tactile puzzle blocks develop spatial skills and fine motor coordination through active exploration.
SCREEN FREE FOCUS BUILDER - Encourages concentration and executive function without digital distractions—perfect for travel or classroom.
PROGRESSIVE CHALLENGE LEVELS - 10 double-sided cards offer escalating difficulty to grow with your child’s cognitive development.

Learning Resources STEM Explorers Brainometry is a 34-piece, screen-free 3D puzzle game designed for kids aged 5 and up. Featuring 10 double-sided challenge cards, it progressively develops critical thinking, spatial reasoning, and fine motor skills. Its compact, durable design makes it ideal for home, classroom, or travel, providing an engaging STEM learning experience that grows with your child.

Specifications

ASIN	B097F49QYH
Additional Features	Portable
Age Range Description	Kid
Best Sellers Rank	#2,713 in Toys & Games ( See Top 100 in Toys & Games ) #5 in Assembly & Disentanglement Puzzles
Brand Name	Learning Resources
Color	Multi
Customer Reviews	4.7 4.7 out of 5 stars (2,934)
Educational Objective	STEM
Global Trade Identification Number	00765023093063
Included Components	34 Pieces
Is Assembly Required	No
Item Dimensions	10 x 9 x 4.5 inches
Item Dimensions L x W	9"L x 8"W
Item Shape	Rectangular
Item Type Name	STEM EXPLORERS™ BRAINOMETRY™
Item Weight	0.29 Kilograms
League Name	No League
Manufacturer	Learning Resources
Manufacturer Maximum Age (MONTHS)	120.0
Manufacturer Minimum Age (MONTHS)	60.0
Manufacturer Part Number	LER9306
Manufacturer Warranty Description	2 Year Limited Warranty
Material Type	Plastic
Model Number	LER9306
Number of Items	1
Number of Pieces	34
Number of Players	1
Operation Mode	Manual
Play Activity Location	Tabletop
Power Source	Manual
Product Style	Single
Puzzle Type	Assembly & Disassembly
Set Name	STEM EXPLORERS™ BRAINOMETRY™
Size	Medium
Skill Level	All
Subject Character	STEM
Supported Battery Types	No battery required
Theme	Building
UPC	765023093063
Unit Count	1.0 Count

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