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Knex

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Items 1 - 30 of 55
  • Item #: 007989
    Retail: $39.99
    Rainbow Price: $34.95
  • Item #: 032485
    Retail: $69.99
    Rainbow Price: $54.50
    Use the 352 parts in this kit to build 16 fully-functioning replicas of real-world machines, one at a time, and expand upon knowledge of simple machine concepts. Models include: a tow truck (pulley), a paddle wheel boat (wheel and axle), and a carousel (gears). Students are able to investigate and experiment with their models while synthesizing and analyzing information. Who knew that you could learn so much while building with K'Nex? The included teacher's guide is aligned to STEM standards and promotes deeper thinking by asking questions and presenting challenges. – Rachel
  • Item #: 008020
    Retail: $39.99
    Rainbow Price: $34.95

    Thirteen different bridge models in seven bridge types (beam, truss, arch, cantilever, suspension, cable-stayed and movable/bascule) are possible with this 207 piece set. Students can experiment with the strength, load, and stability of each bridge, calculate cost involved in construction, learn key features associated with each bridge type and more. Color-coded instructions and a 92-page teacher guide with lesson plans, extension activities, and worksheets are included. ~ Megan

  • Item #: 008004
    Retail: $39.99
    Rainbow Price: $34.95
  • Item #: 067936
    Retail: $39.99
    Rainbow Price: $34.95

     This 403 piece building set includes all the K’nex rods and connectors you love, but in a fun color palette full of pink, purple, lime, black, white, yellow, and orange. Building directions are included for 7 models with a link to directions for an additional 5 models including the Eiffel Tower, the Sydney Opera House, the Taj Mahal, and cultural icons like igloos, elephants, maple leaves, and more. There’s also a 2.5” figure of world-traveler Ava and Bamboo, her pet red panda for lots of around-the-world adventures! – Laura

  • Item #: 067933
    Retail: $49.99
    Rainbow Price: $41.50

       Bring motion to K’NEX! This battery-operated building set includes over 25 motorized models, such as a rescue chopper, carousel, and a basketball game, in addition to 25 unpowered models. Requires 2 AA batteries (not included). 529 pcs.

  • Item #: 067932
    Retail: $8.99
    Rainbow Price: $5.61

     These fun building packs include a 2.5” figure along with pieces to build accessories. Build Marissa’s Turtle Tour booth, Hailey’s star gazing telescope and campsite, or Jess’s drum set and chalkboard. Each character has an accompanying animal friend too! Note: These sets are not compatible with other K’nex sets. – Laura

  • Item #: 067931
    Retail: $59.99
    Rainbow Price: $46.95

    Blast a roller coaster car half-way to the moon with this stomp-powered roller coaster! When complete, the coaster stands over 4 feet high with a straight vertical launch and a winding track back down. 607 pcs.

  • Item #: 067930
    Retail: $29.99
    Rainbow Price: $21.56

     Create all kinds of inventions with this fun kit! This classic K’nex set contains 382 pieces in a handy purple storage tote with plenty of room for storing additional rods and connectors. Instead of traditional K’nex colors, pieces are predominantly green, purple, pink, white, and yellow. The included booklet has directions for 10 models to build as well as a link for 40 more models online. This open-ended set has endless possibilities for a creative builder. Made in the USA. – Laura

  • Item #: 067929
    Retail: $119.99
    Rainbow Price: $99.95

  • Item #: 067024
    Retail: $99.99
    Rainbow Price: $85.75

     442 assorted pcs –plentiful wheels plus 3 types of motors (battery powered motor, spring motor, and fly wheel motor). Storage Bin dividers included. Requires 4 AA batteries-not included.

  • Item #: 067023
    Retail: $99.99
    Rainbow Price: $85.75

     597 assorted pcs: different size gears, pulley wheels, and flexible rods to build a paddle boat, crank fan, wheel barrow and much more. Includes Storage bin dividers.

  • Item #: 067022
    Retail: $79.99
    Rainbow Price: $69.75

    863 pcs. 100 unique building ideas: Ambulance, Guitar, Space Shuttle. Storage bin dividers included.

  • Item #: 067021
    Retail: $39.99
    Rainbow Price: $34.95

     408 pcs. 50 building ideas: T-Rex, Airplane, Snow Boarder, Off Road Rover-etc.

  • Item #: 064350
    Retail: $399.99
    Rainbow Price: $319.95

     Take your K’Nex to the next level with this programmable robotics system. This set has over 800 pieces, programming software, a control box, 4 motors, 1 push-button sensor, 1 distance sensor, 1 tri-color LED, 1 color/light sensor, and a downloadable teacher’s guide. Build 9 different models (one at a time) – line tracker, robot, dog, airplane, car, and more. You will need 6AA batteries that aren’t included and the software is only compatible with Windows 7, 8.1, and 10 using a USB port – not compatible with Mac products. Supports STEM and NexGen Science Standards and the kit is large enough to be used by students or a family working in a group of two or three. Video instruction, programming software, user guide, and additional PDF files are available at the publisher’s website. This may look like a toy, but students will learn how to build, program, and control their project, and maybe even come up with some of their own creations. ~ Donna

  • Item #: 063694
    Retail: $14.99
    Rainbow Price: $9.35

    Build your own K’Nex weapons that fire soft foam darts up to 75 feet! Using K’Nex rods and connectors along with other custom pieces, you can build some pretty serious looking weaponry! Assorted style, you’ll receive either the K-10X building set or the Mini Cross building set (our choice, if you order more than one, we’ll try to assort!) which each contain about 90 pieces and 5 soft darts. You can even combo build both of these sets into a much larger and more impressive looking weapon! Compatible with the entire K’Nex Build & Blast line. ~ Megan



  • Item #: 063468
    Retail: $29.99
    Rainbow Price: $28.95
    This kit adds wheels to the classic building toy that has been around for more than 100 years. Construct a pull-along duck, race cars, and any wheelin' thing you can think up! This set includes 76 sturdy, colorful pieces that easily snap together, even for little ones. Zoom zoom! - Laura
  • Item #: 063467
    Retail: $49.99
    Rainbow Price: $47.95
  • Item #: 063466
    Retail: $34.99
    Rainbow Price: $33.95
    Build a lovely cottage for a lovely lady and her horse! This 134-piece set includes special pink and purple pieces compatible with included traditional wooden ones, a sticker sheet for customization, a frontier-woman, and her pony. I love that you can remove her hoop skirt and parasol and she's ready to ride her horse, embracing her girly side but also able to keep up with the cowboys! - Laura
  • Item #: 063465
    Retail: $109.99
    Rainbow Price: $104.95
    Construct with a classic! These real-wood pieces are made in America and are easy to work with for little hands. Develop fine motor skills as you follow the included directions, or blaze your own trail and create unique sturdy buildings. Everything fits inside a sturdy storage tin. - Laura
  • Item #: 063464
    Retail: $49.99
    Rainbow Price: $39.95

    Construct a crazy coaster! Use the 561 pieces to build a coaster that's almost 3 feet tall. Explore gravity and kinetic energy as the car travels through 16 feet of track. Motor requires 2 AA batteries, not included. Laura

  • Item #: 063463
    Retail: $19.99
    Rainbow Price: $18.75
  • Item #: 063462
    Retail: $19.99
    Rainbow Price: $11.68
    Build ferocious dragons, attach the motor, then attack! The Stompz set has a lot of green pieces, while the X-Flame set has more black, blue, and purple pieces. Each set builds three moving figures, but directions for others are available as a free PDF download on the K'Nex website. Motor requires 2 AA batteries, not included. – Laura
  • Item #: 063461
    Retail: $24.99
    Rainbow Price: $23.50
    Go supersonic with this awesome building set! Create a land rocket from 275 pieces, then head to the K'Nex website where you can find bonus directions for a Mach Speed Car. – Laura
  • Item #: 063460
    Retail: $49.99
    Rainbow Price: $46.95

  • Item #: 063459
    Retail: $34.99
    Rainbow Price: $31.95
  • Item #: 063458
    Retail: $49.99
    Rainbow Price: $43.95
    Build five military vehicles with this 539 piece set! Your Helicopter, Tank, Drone, Anti-Aircraft Vehicle, and Armored Personnel Carrier will be ready to roll with battery-powered motor and missile launcher with 3 foam missiles. All K'Nex rods and connectors are made in America, about 98% of this set. Includes military K'Nex figure. 2 AA batteries required, not included. - Laura
  • Item #: 061934
    Retail: $39.99
    Rainbow Price: $36.95
    Build a frontier lodge with this 137-piece set that features real wood logs now made in the USA. Comes with riding cowboy figure & horse and step-by-step building instructions.

  • Item #: 060643
    Retail: $30.00
    Rainbow Price: $23.95

    A completely unique building set that feels a little bit like simplified, geometry-based K’Nex. Zome is composed of struts (slender, colored plastic rods) and balls. The balls are a white plastic that are covered in holes that are either triangles, rectangles or pentagons. The struts have connecting ends that match those shapes and since certain holes face certain directions, you can create some very cool and interesting geometric shapes! I’ll admit, these little guys are trickier than I expected, but were quite addicting as the challenge only made me more determined. This set has 30 balls, 15 blue struts in three sizes, 10 yellow struts in three sizes and 6 red struts in three sizes for a combined 93 struts. Parents should note that the included manual is the general manual from the creators, and not all of the designs presented will be buildable with this basic set. ~ Laura

  • Item #: 060205
    Retail: $39.99
    Rainbow Price: $36.95