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K'Nex® Double Doom Roller Coaster Building Set

K'Nex® Double Doom Roller Coaster Building Set - image 1 of 3
$71.99
WARNING: choking hazard - children under 8 can choke or suffocate on uninflated or broken balloons. Adult supervision required.

about this item

Two coaster cars equal double the trouble with the Double Doom Roller Coaster Building Set! Build with 891 K'NEX pieces including classic rods, classic connectors, and track that build a model over 3 feet high! With the motorized action, your 2 coaster cars will go on a twisting and turning ride. For more fun, download instructions for a 2nd coaster. Models can be built one at a time. Requires 2 "AA" batteries (not included). Rods and connectors Made in the USA. Ages 9+.
Number of Pieces: 891.0
Dimensions (Overall): 14.0 inches (H) x 3.25 inches (W) x 18.5 inches (L)
Battery: Required, not included
Material: Plastic
Weight: 4.8 pounds
Suggested Age: 9 Years and Up
CPSC Choking Hazard Warnings: Choking_hazard_balloon
Care and Cleaning: Spot or wipe clean
TCIN: 50081795
UPC: 744476554024
Item Number (DPCI): 204-07-0419

most recent reviews

fun putting together, very challenging

(would recommend)
4 out of 5 stars
Bari101 year ago
originally posted on Knex.com
Knex.com
My son received Double Doom roller coaster as a gift. Took 3 day to build, and when I got to the end to put the chain links together - there was NOT enough links in the bag......Big Disappointment. He has been waiting 3 days to play with his roller coaster.  see moreof Bari10's review
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Great Addition to our K'Nex Coaster Sets!

(would recommend)
5 out of 5 stars
STEM1 year ago
originally posted on Knex.com
Knex.com
Christmas gift for my 7 year old son. He was pumped building it, challenged him and easy to follow directions. Lots of parts to keep him busy and encouraged to get it going. He's having fun, including with his friends playing with it. Been a great addition to his other K'Nex coasters. Also, bou...  see moreof STEM's review
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Awesome coaster!

(would recommend)
5 out of 5 stars
Brad321 year ago
originally posted on Knex.com
Knex.com
Received this as a gift for Christmas and it's the best coaster I have assembled from K'Nex! [This review was collected as part of a promotion.]  see moreof Brad32's review
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Double Doom

5 out of 5 stars
BlackRose1 year ago
originally posted on Knex.com
Knex.com
I purchased this product for my son who is 8 & basically built it with very little assistance from me. Obviously with any coaster, you will need to adjust things a bit once build but this one is GREAT! [This review was collected as part of a promotion.]  see moreof BlackRose's review
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Doesn't work

(would not recommend)
1 out of 5 stars
Wade1 year ago
originally posted on Knex.com
Knex.com
I followed the instructions exactly, checked everything about 20 times, watched youtube videos, researched on the internet, etc. It just does not work (will not complete the loop). I see other people get it to work without any issues so it seems like either you get a kit that works or you don't. ...  see moreof Wade's review
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Birthday present

(would recommend)
5 out of 5 stars
JCam1 year ago
I bought this for my 5 yo nieces birthday. My 13 yo daughter loved it so much that I am ordering another for her Christmas present. Great packaging! Nice and sparkly, lots of mystery as to which shopkins are inside.  see moreof JCam's review
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Not what my son paid for

(would not recommend)
2 out of 5 stars
happynow1 year ago
originally posted on Knex.com
Knex.com
This building set was the first thing my 8 year old son ever bought with his own money. He saved for it and was very excited when it was delivered. He worked for hours over the course of a couple of days. When he finally switched it on, the cars made it around the entire track twice then would no...  see moreof happynow's review
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Very good coaster

(would recommend)
4 out of 5 stars
Kafisher691 year ago
originally posted on Knex.com
Knex.com
I cannot speak to the folks that have missing pieces, I had everything in my box. As for it not running or whatever, I have no issues. Just follow the instructions COMPLETELY and it will be fine. I was disappointed that the Wild Warp was not as pictured on the box but smaller and more simple. I ...  see moreof Kafisher69's review
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