what is the module of these gears?

I don't know. It is not printed on the gears anywhere and I cant honestly see well enough right now to count the teeth. their pretty small. so I don't know.

The promotional codes 5fmsmqp8 and 9l4wnv7 didn't work as i tried them, and none made any differences at all! why? will you fix the issues?

I feel this question is either for Amazon or the supplier, I don’t think I could help.

do you have suggested things you could make w/ these for 7 year old ?

My 7 year old and I made a car using posicle sticks and a glue gun in addition to the kit. Since the gears are so small the tollerance for placing them correctly is pretty tight. My 7 year old wasn't able to line up the axle holes by himself and still have the gears mesh. With adult help and immagination you could make all kinds of contraptions.

Toy Plastic Gears | Desertcart KSA

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Description

⚙️ Unlock your inner engineer — build, innovate, dominate!

COMPACT PORTABLE DESIGN - Lightweight 2.4 oz kit fits in your workspace or backpack — build on the go, impress your peers.
DIVERSE GEAR TYPES SIZES - Includes crown, bevel, copper, rack, pulley, and fan gears to unlock endless mechanical creativity.
PRECISION AXLES IN FOUR SIZES - 30mm, 50mm, 70mm, and 100mm axles with consistent 2mm diameter for perfect fit and smooth rotation.
COMPLETE 82 PIECE DIY GEAR KIT - Everything you need to build, fix, or innovate your toy cars, robots, and motors.
READY FOR SERIOUS MAKERS TINKERERS - Ideal for STEM projects, small production models, and hands-on engineering experiments.

The EUDAX 82 pcs Plastic Gear Package Kit is a comprehensive DIY assortment designed for toy cars, robots, and motorized projects. Featuring axles in four precise lengths (30-100mm) with 2mm shaft diameters, and a variety of gears including crown, bevel, and pulley types, this kit empowers makers to create complex mechanical models. Lightweight and portable, it’s perfect for STEM enthusiasts and creative professionals seeking hands-on innovation.

Specifications

ASIN	B0776ZPP7V
Age Range Description	Kid
Best Sellers Rank	#80,948 in Toys & Games ( See Top 100 in Toys & Games ) #19 in Toy Interlocking Gear Sets
Brand Name	EUDAX
Color	Assorted
Customer Reviews	4.3 out of 5 stars 453 Reviews
Educational Objective	Color Recognition
Indoor Outdoor Usage	Indoor
Is Assembly Required	Yes
Item Dimensions	5.7 x 3.5 x 1 inches
Item Weight	0.15 Pounds
Manufacturer	EUDAX
Manufacturer Part Number	EH-GEAR-82KIT
Material Type	Plastic, Rubber
Number of Players	1
Operation Mode	Manual
Power Source	Manual
Set Name	82-Piece Plastic Gear Accessory Set
Size	Small
Subject Character	Robot
Supported Battery Types	No batteries required
Theme	Car,Robot
UPC	756155716883
Unit Count	82.0 Count

Reviews

G**Y

6.05.2025

D**W

21.02.2024

F**R

27.12.2017

E**H

10.08.2023

S**L

31.03.2025

C**W

28.03.2021

M**E

18.07.2023

W**E

4.11.2018

M**O

24.05.2022

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