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All Kids' clothing ships free & free shipping with $75 order!

Offer available online only. Gift cards not included. Items purchased from some categories are subject to shipping surcharges. Surcharges may apply due to size, weight or special handling required. If your item has a surcharge, it will appear on the product page. Offer valid for orders shipping within the 48 contiguous United States only and does not include 1-day or 2-day shipping and handling charges or previous orders.

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K'Nex Thrill Rides Atomic Coaster


Item #55710
Model 51441
$46.99
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Science is nuclear fun when it takes the shape of a mammoth 4-foot tall dueling roller coaster from K'NEX!! Check out the Atomic Coaster that offers over 1,250 pieces, 37 intense feet of track, 2 slick cars and a motor that lifts them into the air before they come shooting down the track in a daring race to the bottom! Color-coded instructions included, with an additional model available for download! 95% of the parts in K'NEX Thrill Rides are Made in the USA. Ages 9+. Requires 2 "AA" batteries.

  • Includes 1,255 pieces
  • Builds 4 feet tall
  • Motorized chain lift
  • 37+ feet of track
  • 2 coaster cars
  • Ages 9+
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Item may ship in a separate package and arrive on different days. Item not eligible for in store return.

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K'Nex Thrill Rides Atomic Coaster