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 Pcs Plastic Gear Package Kit Diy Gear Assortment

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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COP 72911

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Unlock your inner engineer — build, innovate, and lead the DIY revolution!

DIVERSE GEAR TYPES - Includes crown, bevel, copper, rack, and pulley gears to unlock complex mechanical designs.
VERSATILE AXLE SIZES - Four axle lengths (30, 50, 70, 100mm) with 2mm shaft diameter for perfect fit and flexibility.
COMPACT LIGHTWEIGHT - At just 2.4 ounces and pocket-sized, take your innovation anywhere, anytime.
DIY READY EDUCATIONAL - Ideal for hands-on science projects, product design prototypes, and mechanical modeling.
COMPLETE 82 PIECE GEAR ARSENAL - Everything you need to engineer your next toy car or robot masterpiece.

The EUDAX 82 pcs Plastic Gear Package Kit is a comprehensive DIY gear assortment designed for toy cars, robots, and motorized projects. Featuring 82 assorted plastic and rubber components including spindles, crown gears, pulleys, racks, axles in multiple lengths, wheels, and rubber bands, this kit supports versatile mechanical builds. Perfect for educational use, prototyping, and hobbyist innovation, it offers precise 2mm shaft diameters and a variety of gear types to enable complex, custom designs without batteries or power sources.

Specifications

ASIN	B0776ZPP7V
Age Range Description	Kid
Best Sellers Rank	#79,073 in Toys & Games ( See Top 100 in Toys & Games ) #15 in Toy Interlocking Gear Sets
Brand Name	EUDAX
Color	Assorted
Customer Reviews	4.3 4.3 out of 5 stars (461)
Educational Objective	Color Recognition
Indoor Outdoor Usage	Indoor
Item Dimensions	5.7 x 3.5 x 1 inches
Item Weight	2.4 ounces
Manufacturer	EUDAX
Manufacturer Part Number	EH-GEAR-82KIT
Material Type	Plastic, Rubber
Number of Packs	1
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 Count

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COP 72911

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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EUDAX 82 pcs Plastic Gear Package Kit - DIY Gear Assortment Accessories Set for Toy Motor Car Robot Various Axle Belt Bushings

Description

Specifications

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