does it have gears? How many? kinds of gears?

It has no gears. For reference, you many look parts list here, http://www.knex.com/instructions/instruction-books/70-Model-Treasure-Chest-13419.pdf

Is the case cardboard? And how sturdy is it?

Yes it is. It is very sturdy, my grandchildren have the knex in out of the box very often and they are not real careful when the put stuff away.

Which is better k'nex 52 model or 70 model, they are priced same currently?

In my opinion the 70 model is better. You have more pieces and possibilities for building if you like to just build your own creations. I bought my grandson both sets.

Does it come with full instructions on how to construct all 72 models?

It comes with instructions for about 20 models

70 Model Building Set 705 Pieces Stem Learning Creative Play

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

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

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KD 48.50

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Description

⚡ Unlock your child’s inner engineer with 705 pieces of pure imagination!

STEM POWERED FUN - Fosters critical skills in science, tech, engineering, arts & math through hands-on play.
ORGANIZED PLAYTIME - Handy treasure chest keeps all pieces neatly stored and ready for the next build.
BRING MODELS TO LIFE - Build interactive creations with wheels, rotors, and moving parts that actually work.
QUALITY YOU CAN TRUST - Made in a zero-waste US facility with lifetime warranty for worry-free creativity.
ENDLESS CREATIVE POSSIBILITIES - 705 classic rods & connectors snap securely for limitless model building.

The K'NEX 70 Model Building Set includes 705 durable plastic rods and connectors that snap together to create over 70 unique models featuring real moving parts. Designed for ages 7+, it promotes STEM learning and developmental skills like problem-solving and spatial awareness. Packaged in a convenient storage chest, this American-made set supports sustainable manufacturing and comes with a lifetime warranty, ensuring endless creative play and quality assurance.

Specifications

ASIN	B00HROBJXY
Additional Features	Easy Storage
Age Range Description	7 - 12 years
Best Sellers Rank	#36,747 in Toys & Games ( See Top 100 in Toys & Games ) #1,138 in Toy Building Sets
Brand Name	K'NEX
Color	Multicolor
Customer Package Type	Standard Packaging
Customer Reviews	4.7 4.7 out of 5 stars (3,895)
Educational Objective	Construction Skills
Global Trade Identification Number	00744476134196, 10744476134193
Included Components	705 pieces, Instructions
Item Dimensions	16 x 7.75 x 10.5 inches
Item Type Name	building set
Item Weight	1.5 kg
Manufacturer	K'NEX
Manufacturer Maximum Age (MONTHS)	180
Manufacturer Minimum Age (MONTHS)	84
Manufacturer Part Number	13419
Manufacturer Warranty Description	Lifetime warranty against manufacturer's defects
Material Type	Plastic
Model Name	70 Model
Model Number	13419
Model Year	2021
Number of Pieces	705
Operation Mode	manual
Power Source	manual
Set Name	70 Model Building Set
Size	7.75 inches (W) x 16 inches (L) x 10.5 inches (H)
Sub Brand	K'NEX
Subject Character	Animal
Theme	Vehicle
Toy Building Block Type	Interlocking Toy Building Block
UPC	885230816399 885100707673 885162349200 885163705166 885240770162 787718888068 600682786416 885156412316 744476134196 787799940877

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KD 48.50

Duties & taxes included

In stock

Sold byAmazon KUWAITDelivered 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 KUWAIT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

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70 Model Building Set‚ 705 Pieces, STEM Learning, Creative Play Set‚ Ages 7+ - Amazon Exclusive

Description

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Common Questions