K'Nex

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Open the lid to hours of engineering and construction fun with these colorful building sets from KNEX. The individual sets are all complete, and each includes detailed instructions for constructing all manner of vehicles, structures, machines, animals, and gizmos. KNEX sets can used interchangeably. Take a look at the amazing construction possibilities.


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Simple Machines Deluxe Set Item #: 031055
Grades: 3-8
Retail: $374.99
Rainbow Price: $294.95

Exploring Machines Building Set (1432 Pieces) Item #: 007979
Grades: 5-9
Retail: $174.99
Rainbow Price: $149.95

Simple and Compound Machines Building Set Item #: 032485
Grades: 5-9
Retail: $69.99
Rainbow Price: $54.50

Intro to Simple Machines: Gears Set (198 Pieces) Item #: 007989
Grades: 3-6
Retail: $39.99
Rainbow Price: $36.95

DNA, Replication & Transcription Set (521 Pieces) Item #: 007973
Grades: 5-9
Retail: $59.99
Rainbow Price: $51.95

Intro to Structures: Bridges Item #: 008020
Grades: 3-6
Retail: $39.99
Rainbow Price: $36.95

Intro to Simple Machines: Levers & Pulleys Set (178 Pieces) Item #: 008004
Grades: 3-6
Retail: $39.99
Rainbow Price: $36.95

K'Nex Investigating Solar Energy (128 Pieces) Item #: 060199
Grades: 5-Adult
Retail: $79.99
Rainbow Price: $69.75

K'Nex Education Motor Pack Item #: 008110
Grades: 3-8
Retail: $24.99
Rainbow Price: $21.50

521 Piece Super Value Tub Item #: 052863
Grades: 2-Adult
Retail: $24.99
Rainbow Price: $21.95

Real Bridge Building Item #: 008068
Grades: 5-9
Item only ships to contiguous U.S. destinations. It will
automatically cancel if shipping to non-contiguous U.S.
Retail: $209.99
Rainbow Price: $187.95

Force and Newton's Laws Building Set Item #: 032477
Grades: 5-9
Retail: $59.99
Rainbow Price: $53.95

K'Nex Imagine Builder Basics 35 Model Set Item #: 052865
Grades: 2-Adult
Retail: $24.99
Rainbow Price: $19.95

K'Nex Imagine Classic Constructions 70 Model Set Item #: 000661
Grades: 2-Adult
Retail: $39.99
Rainbow Price: $36.95

Intro to Simple Machines: Wheels, Axles and Inclined Planes Set (221 Pieces) Item #: 008016
Grades: 3-6
Retail: $39.99
Rainbow Price: $36.95

K'Nex Exploring Wind & Water Energy (288 Pieces) Item #: 060198
Grades: 5-Adult
Retail: $79.99
Rainbow Price: $69.75

K'Nex Blizzard Blast Roller Coaster Building Set Item #: 063464
Grades: 4-Adult
Retail: $49.99
Rainbow Price: $39.95

K'Nex Renewable Energy (583 Pieces) Item #: 060201
Grades: 5-Adult
Retail: $199.99
Rainbow Price: $149.95

52 Model Building Set Item #: 000659
Grades: 2-Adult
Retail: $39.99
Rainbow Price: $37.95

25th Anniversary Ultimate Builder's Case Item #: 052866
Grades: 2-Adult
Retail: $59.99
Rainbow Price: $46.95

Stem Explorations: Roller Coaster Building Set Item #: 067027
Grades: 5-9
Retail: $44.99
Rainbow Price: $36.95

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