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.

Eudax 82 Pieces Plastic Gear Package Kit For Toy

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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AED 92

Duties & taxes included

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Sold byAmazon UAEDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Unlock your inner engineer with every turn!

COMPACT PORTABLE - Lightweight 68g kit fits anywhere for on-the-go projects
DURABILITY MEETS DESIGN - High-quality plastic ensures long-lasting fun
PERFECT FOR STEM LEARNING - Boost construction skills with hands-on play
ENDLESS CREATIVE ENGINEERING - 82 assorted gears to build, tinker, and innovate
NO BATTERIES ALL BRAINPOWER - Manual operation sparks creativity without limits

The EUDAX 82 Pieces Plastic Gear Package Kit offers a durable, high-quality set of interlocking gears designed for kids and hobbyists to explore mechanical concepts. With 82 assorted plastic gears in multiple sizes, this manual assembly kit encourages STEM learning and creative construction without the need for batteries. Lightweight and compact, it’s perfect for indoor educational play and science projects.

Specifications

ASIN	B0776ZPP7V
Age Range Description	Kid
Best Sellers Rank	#159,634 in Toys ( See Top 100 in Toys ) #21 in Toy Interlocking Gear Sets
Brand Name	EUDAX
Color	tan
Customer Reviews	4.2 out of 5 stars 446 Reviews
Educational Objective	Construction Skills
Indoor Outdoor Usage	Indoor
Is Assembly Required	Yes
Item Dimensions	14.5 x 8.9 x 2.5 centimeters
Item Weight	68 g
Manufacturer	EUDAX
Manufacturer Maximum Age (MONTHS)	36
Manufacturer Part Number	EH-GEAR-82KIT
Material Type	Plastic Rubber
Number of Packs	1
Number of Players	1
Operation Mode	Manual
Power Source	manual winding
Set Name	EUDAX 82 pcs Plastic Gear Package Kit
Size	M, S
Subject Character	Robot
Supported Battery Types	No batteries required
Theme	Toy
UPC	756155716883
Unit Count	1 Count

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