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K'NEX Atomic Coaster Building Set

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About this item

Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.

Your child can build an atomically cool coaster with dueling action with this building set. With the K'NEX Atomic Coaster Building Set they can use more than 850 K'NEX pieces to create a thrilling roller coaster building experience. Two dueling cars twist, turn and dive as they race through more than 37' of track. The K'NEX Coaster builds over 4' tall and includes a motorized chain lift. Give your child's mind a challenge. With the K'NEX Roller Coaster, your child can construct two different tracks at once and experience the thrill of watching them race against each other in separate courses. Watch your child experience the pride of having built something so intricate. It makes for an exciting gift that can expand the imagination of a child, and it is sure to provide hours of fun.

About this item

Important Made in USA Origin Disclaimer: For certain items sold by Walmart on Walmart.com, the displayed country of origin information may not be accurate or consistent with manufacturer information. For updated, accurate country of origin data, it is recommended that you rely on product packaging or manufacturer information.

Your child can build an atomically cool coaster with dueling action with this building set. With the K'NEX Atomic Coaster Building Set they can use more than 850 K'NEX pieces to create a thrilling roller coaster building experience. Two dueling cars twist, turn and dive as they race through more than 37' of track. The K'NEX Coaster builds over 4' tall and includes a motorized chain lift. Give your child's mind a challenge. With the K'NEX Roller Coaster, your child can construct two different tracks at once and experience the thrill of watching them race against each other in separate courses. Watch your child experience the pride of having built something so intricate. It makes for an exciting gift that can expand the imagination of a child, and it is sure to provide hours of fun.

K'NEX Atomic Coaster Building Set:

  • Over 800 pieces
  • Coaster soars 4 ft high
  • 37 ft of track
  • Includes: 2 coaster cars and motorized chain lift
  • Plastic
  • Color-coded instructions
  • Packaged

Specifications

Occasion: Christmas ,  Holiday ,  Birthday
Gender: Boys ,  Girls
Color: Multicolor
Age Group: Child
Subject: Buildings & Bridges
Age Range: 8 - 11 Years
Count: 850
Material: Plastic
Manufacturer Part Number: 51441
Connector Type: Interlocking
Model: 51441
Theme: K'NEX Thrill Rides
Brand: K'NEX
Assembled Product Dimensions (L x W x H): 17.00 x 3.25 x 14.00 Inches
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1-2 of 2 questions See all

Customer Reviews

Customer Reviews | 21 reviews | 4.2 out of 5

4.0 stars

21 reviews | 4.2 out of 5

4.0 stars

21 reviews | 4.2 out of 5

86%
Would recommend to a friend
5 stars
12
4 stars
5
3 stars
1
2 stars
2
1 stars
1
1-10 of 18 total reviews
86%
Would recommend to a friend

Age

Gender

12/18/2012

Customer review by queenieu

5.0 stars 12/18/2012 by queenieu
by queenieu
Verified purchaser
Verified purchaser
Customer has been confirmed to have purchased the item from Walmart.

just what our 10 yr. old grandson wanted...he loves it. arrived faster than expected and excellent condition....would surely recommend ordering on line from Walmart......thanks ! (would be too difficult for our 7 yr. old grandson)

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queenieu
Valparaiso, IN
Would recommend to a friend? Yes
Age:65 or older
Ownership:1 week or less
Gender:Female
Usage:Never
Verified purchaser
Verified purchaser
Customer has been confirmed to have purchased the item from Walmart.
great project for my 12 yr old grandson.
1/5/2013

Customer review by giftygramma

5.0 stars 1/5/2013 by giftygramma
by giftygramma
Verified purchaser
Verified purchaser
Customer has been confirmed to have purchased the item from Walmart.

This is a good project at a very good price. Take care with the shipping options though, On xmas eve we were searching for the FEDEX terminal. paid for the expediated shipping and picked it up after a week.

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giftygramma
syracuse ny
Would recommend to a friend? Yes
Age:45 - 54
Ownership:2 - 7 weeks
Gender:Female
Usage:Never
Verified purchaser
Verified purchaser
Customer has been confirmed to have purchased the item from Walmart.
Excellent Learning Product
1/14/2014

Customer review by knexdad

4.0 stars 1/14/2014 by knexdad
by knexdad

Bought this for my daughter as a Christmas present. She had a great time putting it together - took her about 2 days off and on. Only issue is that the track sometimes detaches from the hooks causing either the chain to get caught or the cars to get lodged between the tracks. Minor tweaks gets it going again, but re-occurs often. Have to admit though... it did keep her focussed for the 2 days it took her to build and beyond with the minor repairs.

knexdad
Toronto, ON, Canada
Would recommend to a friend? Yes
Gender:Male
troubling
12/28/2013

Customer review by nicknak

2.0 stars 12/28/2013 by nicknak
by nicknak

I got this for Christmas and attempted to build it the hooks or connecters are very painful to your fingers and I would often find the some of the pieces are missing in the end I ended up giving up because of the instruction manual being hard to understand , would not recommend this set to build alone.

nicknak
North Sydney, New South Wales, Australia
Would recommend to a friend? No
Gender:Male
Great product
1/15/2014

Customer review by Roz124

5.0 stars 1/15/2014 by Roz124
by Roz124

My son was 4 years old when he started building these roller coasters...he loves the challenges and builds them himself...the pieces are sturdy and the results are fun - the directions are easy for a child with spacial reasoning to follow.  We love all the products!

Roz124
Calgary, AB, Canada
Would recommend to a friend? Yes
Gender:Female
Very disappointed
10/7/2013

Customer review by Pops

2.0 stars 10/7/2013 by Pops
by Pops

The top front of the rail and support pegs can't hold the track up.  The yellow peg and track guide keep popping off which causes the chain to get caught. Very frustrating. This one major issues prevents the motor from running properly which ruins the whole set.  

Pops
Would recommend to a friend? No
Amazing Roller Coaster
3/27/2014

Customer review by Homeschooldrmom

5.0 stars 3/27/2014 by Homeschooldrmom
by Homeschooldrmom

My 10 year old son was given this Roller Coaster for Christmas. He and his oldest brother immediately started building it. They had so much fun working together and it only took them about 30 mins. He loves this Coaster and still likes to play with it.

Homeschooldrmom
Calgary, AB, Canada
Would recommend to a friend? Yes
Gender:Female
Great Coaster
10/31/2013

Customer review by Knexenthusiast

5.0 stars 10/31/2013 by Knexenthusiast
by Knexenthusiast

This coaster was very worth the price and was very fun to play with!  It is very durable and easy to build. I would recommend this product to kids of all ages that like building things. I love it.

Knexenthusiast
Memphis, TN
Would recommend to a friend? Yes
Gender:Male
Impressive Double Coaster
1/18/2014

Customer review by HOps

4.0 stars 1/18/2014 by HOps
by HOps

My 9-year-old son loved building this one. The chain and gear mechanism was a bit finicky though - one cog was catching on the track. He managed to fix it with a little help from his dad. 

HOps
Calgary, AB, Canada
Would recommend to a friend? Yes
Gender:Female
pretty cool
10/28/2013

Customer review by DanTheMan

4.0 stars 10/28/2013 by DanTheMan
by DanTheMan

I cant figure out the chain at the top because it always gets stuck but when I fixed it, It was a great coaster and very worth the price, plus,it was pretty easy to build.

DanTheMan
Memphis, TN
Would recommend to a friend? Yes
Gender:Male
1-10 of 18 total reviews See all
1-10 of 18 reviews

Customer Reviews | 21 reviews | 4.2 out of 5

Customer Reviews

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