Easy. It’s a 10 minute distraction for a child over 9. I bought this for my 6 year old (loves magnets, snap circuits, legos, etc). This was fun and worth the price at $17.00. He picks it up every once in a while but I wouldn’t say this is is a learning toy so much as an experimental toy- if that makes sense.

Is the orbit of each planet accurate?

No! There is nothing even remotely accurate about this model. Save your $10, what a waste of money.

Are the batteries secured with a screw or could a kid get to them?

The batteries are secured with a screw!

What is the order to the steel posts?

No directions with this kit. You have to size them so they can rotate around each other. Had I known how frustrating this thing was I would have opted for a more expensive and slightly larger model. Hindsight is great. This kit isn’t.

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4M Solar System Planetarium - DIY Glow In The Dark Astronomy Planet Model Stem Toys Gift for Kids & Teens, Girls & Boys, Model:3427

4M Solar System Planetarium - DIY Glow In The Dark Astronomy Planet Model Stem Toys Gift for Kids & Teens, Girls & Boys, Model:3427

Product ID: 2907244

🌌16.5" glow-in-the-dark solar mobile

🎨Includes glow paint pen & stencils

🧩Complete assembly kit with quiz questions

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€ 30.99

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Light up your learning with the ultimate glow-in-the-dark solar system kit!

ART MEETS ASTRONOMY - Combines creativity and science for a unique, immersive learning experience.
ZERO BATTERY HASSLE - Fully mechanical design means no batteries—pure eco-friendly fun and learning.
HANDS ON STEM LEARNING - Assemble, paint, and explore planetary science with included fact charts and quizzes.
ILLUMINATE YOUR UNIVERSE - Create a stunning 16.5" glow-in-the-dark solar system that captivates every room.
FAMILY BONDING MEETS EDUCATION - Perfect for kids 8+ to engage in a creative, educational activity that sparks curiosity.

The 4M 3-Dimensional Glow-In-The-Dark Solar System Model Making Kit is a hands-on educational toy designed for children aged 8 and up. It features a 16.5" glow-in-the-dark mobile of the eight planets (excluding Pluto), complete with glow paint, stencils, rods, string, and a fact-filled wall chart. No batteries are required, making it an eco-friendly STEM activity that combines art and science to inspire curiosity about astronomy.

Specifications

ASIN	B000HGJJ7W
Age Range Description	Kid
Best Sellers Rank	#35,441 in Toys & Games ( See Top 100 in Toys & Games ) #350 in Educational Science Kits
Brand Name	4M
Customer Reviews	4.4 out of 5 stars 9,206 Reviews
Educational Objective	STEM
Global Trade Identification Number	00085761034273
Included Components	kit
Is Assembly Required	No
Item Dimensions	8 x 4 x 5 inches
Item Type Name	4M Solar System Planetarium
Item Weight	6.4 ounces
Manufacturer	Toysmith
Manufacturer Maximum Age (MONTHS)	960.0
Manufacturer Minimum Age (MONTHS)	96.0
Manufacturer Part Number	3427
Manufacturer Warranty Description	1 year replacement
Model Number	3427
Set Name	4M Solar System Planetarium
Size	1 EA
Theme	Astronomy earth science science fair
UPC	085761034273
Unit Count	1.0 Count

Reviews

R**.

21.03.2026

S**M

2.04.2026

C**R

19.03.2026

D**E

19.02.2024

S**Y

11.03.2026

R**N

29.01.2026

S**A

19.03.2026

K**L

20.02.2024

G**O

22.04.2026

A**R

11.08.2025

C**.

18.02.2020

は**ー

21.12.2020

A**X

6.05.2019

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