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Building Sets by  "4 Star" and "MindWare"

(45 items)
STEM Machines Engineering Kit
STEM Machines Engineering Kit
1 Piece(s) #13763599
$89.95
(7)
 
 
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KEVA Contraptions Reactions
KEVA Contraptions Reactions
1 Piece(s) #14100193
On
Sale
$54.95
8% OFF
(7)
 
 
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STEM Newton's Laws Engineering Kit
STEM Newton's Laws Engineering Kit
1 Piece(s) #13755678
$44.95
(11)
 
 
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STEM Machines Engineering Kits: Set of 2
STEM Machines Engineering Kits: Set of 2
1 Set(s) #13764602
Kit
Price
$89.95
SAVE 27%
(9)
 
 
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Engino STEM Robotics Mini ERP 1.3
Engino STEM Robotics Mini ERP 1.3
1 Piece(s) #13826121
$179.95
(4)
 
 
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KaBlocks Blast Foam Building Blocks Set
KaBlocks Blast Foam Building Blocks Set
22 Piece(s) #13843382
On
Sale
$39.95
20% OFF
(49)
 
 
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400 Piece Colossal Elevator Marble Run with Storage Bin
400 Piece Colossal Elevator Marble Run with Storage Bin
Each #14100196
On
Sale
$99.95
13% OFF
(26)
 
 
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KEVA: Structures 200 Plank Set
KEVA: Structures 200 Plank Set
1 Piece(s) #13941293
$64.95
(54)
 
 
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Gearjits Solar System
Gearjits Solar System
1 Piece(s) #14148270
$69.95
(10)
 
 
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KEVA® Contraptions 200 Plank Set
KEVA® Contraptions 200 Plank Set
1 Set(s) #49020
$64.95
(264)
 
 
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Engino Inventor Motorized Race Car
Engino Inventor Motorized Race Car
0 Piece(s) #14364884
$49.95
 
 
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Gearjits Gumball Machine Marble Coaster
Gearjits Gumball Machine Marble Coaster
1 Piece(s) #14090503
On
Sale
$39.95
11% OFF
(8)
 
 
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Marble Run and Add-on Set
Marble Run and Add-on Set
1 Piece(s) #13941416
$49.95
(473)
 
 
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Marble Run: Add-on Set
Marble Run: Add-on Set
1 Piece(s) #15122
$14.95
(15)
 
 
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Engino STEM Engineering Fluid Dynamics Building Set
Engino STEM Engineering Fluid Dynamics Building Set
1 Piece(s) #14475127
$54.95
 
 
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KEVA Brain Builders Deluxe
KEVA Brain Builders Deluxe
1 Piece(s) #13908110
$32.95
(10)
 
 
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Pattern Play
Pattern Play
1 Piece(s) #25105
On
Sale
$29.95
25% OFF
 
 
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KEVA Maker Bot Maze
KEVA Maker Bot Maze
1 Piece(s) #68409
$42.95
(29)
 
 
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KEVA Structures: 400 Plank Set with FREE Bonus Planks
KEVA Structures: 400 Plank Set with FREE Bonus Planks
1 Piece(s) #13941292
On
Sale
$99.95
17% OFF
(39)
 
 
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Engino Deluxe Architecture Set
Engino Deluxe Architecture Set
1 Piece(s) #13763600
$169.95
(10)
 
 
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Mega Marble Run: 215-Piece Set
Mega Marble Run: 215-Piece Set
1 Piece(s) #62092
$84.95
(113)
 
 
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Gearjits Pendulum Clock
Gearjits Pendulum Clock
1 Piece(s) #13939292
$39.95
(56)
 
 
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KEVA® Brain Builders
KEVA® Brain Builders
1 Piece(s) #66009
$19.95
(14)
 
 
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MAGNA-TILES® Classic 100-Piece Magnetic Construction Set with FREE Storage Bin
MAGNA-TILES® Classic 100-Piece Magnetic Construction Set with FREE Storage Bin
1 Set(s) #13822610
$119.95
(58)
 
 
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Gearjits Carnival Marble Coaster
Gearjits Carnival Marble Coaster
Each #14094682
$39.95
(3)
 
 
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KEVA Brain Builders Junior
KEVA Brain Builders Junior
1 Piece(s) #68337
$19.95
(18)
 
 
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Junior Marble Run
Junior Marble Run
1 Piece(s) #14152372
$49.95
(15)
 
 
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LEGO® Gravity Drop Building Kit
LEGO® Gravity Drop Building Kit
1 Piece(s) #14504372
$29.95
(2)
 
 
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Engino Inventor Motorized Offroader
Engino Inventor Motorized Offroader
0 Piece(s) #14364885
$79.95
(2)
 
 
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Elevator Marble Run Set of 2
Elevator Marble Run Set of 2
1 Unit(s) #14335681
$54.95
(2)
 
 
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Gearjits Globe
Gearjits Globe
1 Piece(s) #13971375
$69.95
(6)
 
 
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Gearjits Video Projector
Gearjits Video Projector
1 Piece(s) #13939291
$39.95
(14)
 
 
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Spin-Gineer
Spin-Gineer
Each #14099837
$79.95
(4)
 
 
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Marble Run: 103-Piece Set
Marble Run: 103-Piece Set
1 Piece(s) #13941415
$44.95
(174)
 
 
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KEVA: 50 Plank Set
KEVA: 50 Plank Set
1 Piece(s) #62089
$15.95
 
 
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KEVA® Maple: 400 Plank Set
KEVA® Maple: 400 Plank Set
1 Piece(s) #58078
On
Sale
$199.95
9% OFF
(18)
 
 
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Q-BA-MAZE 2.0 Action Stunt Set
Q-BA-MAZE 2.0 Action Stunt Set
1 Piece(s) #13815441
Clearance
Price
$14.97
70% OFF
 
 
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Q-BA-MAZE 2.0: Super Race Set
Q-BA-MAZE 2.0: Super Race Set
1 Piece(s) #14118789
Clearance
Price
$19.97
71% OFF
 
 
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Wonderhood Pet Place
Wonderhood Pet Place
1 Piece(s) #13931571
On
Sale
$4.97
83% OFF
(14)
 
 
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Wonderhood Original Character Set of 4
Wonderhood Original Character Set of 4
1 Piece(s) #13931574
Clearance
Price
$1.97
87% OFF
(5)
 
 
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215 Piece Mega Marble Run with Motorized Marble Elevator
215 Piece Mega Marble Run with Motorized Marble Elevator
1 Set(s) #13770185
$99.95
This item is out-of-stock.
(30)
 
 
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KEVA Contraptions 50 Plank Set
KEVA Contraptions 50 Plank Set
1 Piece(s) #48001
$26.95
This item is out-of-stock.
(29)
 
 
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LEGO® Gear Bots
LEGO® Gear Bots
0 Piece(s) #13969073
$29.95
This item is out-of-stock.
(15)
 
 
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KEVA® Models Monuments Building Set
KEVA® Models Monuments Building Set
1 Piece(s) #14436548
$54.95
This item is out-of-stock.
 
 
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LEGO® Chain Reactions
LEGO® Chain Reactions
1 Piece(s) #13707873
$29.95
This item is out-of-stock.
(20)
 
 
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