Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

K'Nex Stem - 546pcs

<ul><li><strong>Extensive Building Components</strong>: Includes over 500 parts and a battery-powered motor for constructing a working roller coaster.</li><li><strong>Multiple Model Construction</strong>: Allows building of a working roller coaster, a ramp, and a half-pipe, one at a time.</li><li><strong>Educational STEM Focus</strong>: Offers opportunities for children to develop scientific inquiry, investigation, and experimentation skills through building and problem-solving.</li><li><strong>Teacher & Student Guides</strong>: Comes with comprehensive guides for teachers or experiment guides for student-led learning, written by expert educators.</li></ul>

<br><ul><li>This K’NEX Education® Set includes over 500 parts, plus a battery-powered motor, allowing a single child or a team of two to three children to build a working roller coasteR</li><li>Two additional models are also included in this set — a ramp and a half-pipe —which can be built one at a time</li><li>The set requires two AA batteries, which are not included</li><li>K’NEX Education® models offer proactive opportunities for children to develop scientific inquiry, investigation, and experimentation skills</li><li>Our inquiry-based lessons challenge aspiring students as they build, investigate, problem-solve, discuss, and evaluate scientific and design principles in action</li><li>Requires 2AA batteries - NOT included</li></ul>

Brand

Theme

Piece Count

Minimum Recommended Age

Educational Focus

Material

Model

Has Written Warranty

Your child can explore STEM concepts while building a working roller coaster with K’NEX Education® STEM Explorations Roller Coaster Building Set! The set will engage and energize middle-school children as they boost their understanding of the STEAM (science, technology, engineering, art, and math) concepts associated with a real-life amusement park ride.&nbsp;All K’NEX Education® sets come with either a comprehensive guide for teachers or an experiment guide for student-led learning. All lesson plans and experiment guides are written by expert educators and feature hands-on, inquiry-based projects that engage students in today’s busy classroom. K’NEX Education® sets allow students to build replicas of real-world machines and other models, and through the lesson plans and experiments, to gain a concrete understanding of the principles that make them work. Broaden your kids’ STEAMagination™ with K’NEX Education® STEM Explorations. Requires 2AA batteries - NOT included.

Age Range

Maximum Recommended Age

Character

Product Line

Colour

Assembled Product Weight

Universal Product Code (UPC check)

Walmart Item #

<!DOCTYPE html>
<html>
   <head>
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link
         rel="stylesheet"
         href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
         />
   </head>
   <body>
      <div class="flex flex-column justify-center w-100 ph3 normal lh-copy pt1">
            <div class="tc">
               <img src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg">
               <h3>4 equal payments</h3>
               <h4 class="gray">Buy what you love and split the cost. It's that easy. </h4>
            </div>
            <ul>
            <b>
               <li>Add item(s) to your cart.</li>
               <li>
                  Add items to checkout and choose 
                  <image height="14" width="auto" src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg"></image>
               </li>
               <li>Enter your debit or credit card information. </li>
               <li>Your first payment is taken when the order is processed, and the remaining 3 are automatically taken every two weeks.</li>
            </b>
            </ul>
            <p class="gray">Please note that a higher initial payment may be required for some purchases. Pay later in 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4" target="_blank">terms</a> available here. For Quebec residents, these Pay Later 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4_quebec" target="_blank">terms</a> are applicable. </p>
      </div>
   </body>
</html>

[This review was collected as part of a promotion.] My grandson loved it! Gave it as one of his 11th birthday gift. My daughter loved the “no screen time” activity so a real win win.

Great build kit!

walmart.com

[This review was collected as part of a promotion.] This toy has provided hours of fun for my 8 year old. He feels so accomplished.

Super Fun!

[This review was collected as part of a promotion.] My granson loved this. He is 8 years old. it was a little difficult for him to do on his own but we all helped him and had a great time!

Awesome

[This review was collected as part of a promotion.] Teaches him to work with his hands and mind

[This review was collected as part of a promotion.] Looks fun to build

Nice

Perfect gift for your  Builder!

[This review was collected as part of a promotion.] Are you a roller coaster fan like my son? Well if you are you have come access the perfect kit! With lots of time on our hands and not being able to actually go to the amusement park, we found a replacement. My son and has so much fun building our very own roller coaster at home together. The K'NEX - STEM Explorations: Roller Coaster Building Set comes with everything you need to bring your roller coaster dream come true. From easy to read instructions to having a real motor that lifts the car is AWESOME. I am also happy that he can let his imagination go wild when designing and operating his very own roller coaster. We are going to the store this weekend and picking up another set to expand his home amusement park. Thanks Knex, you got a quality product here.

We Built Our Own Roller Coaster!

Basic Fun

[This review was collected as part of a promotion.] My son was super excited to spend his birthday money on this roller coaster kit. He put the whole thing together according to plan, but it doesn't work as promised. The car will not make it around the loop. We have researched it online and it looks like a lot of people are having the same problem. We have tried to modify it, lubricants it, and even add parts. Nothing works. Such a bummer for my little guy.

[This review was collected as part of a promotion.] It is pretty cool my son liked it

[This review was collected as part of a promotion.] Got this for a gift and it was disappointing. The car couldn't go on the roller coaster as advertised.