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Stem Explorations: Swing Ride Building Set
  • $44.99 $40.49
Gears! Gears! Gears! Machines In Motion
  • $39.99 $27.99
KEVA Brain Builders
  • $15.95 $11.17
Gears! Gears! Gears!® 100-Piece Deluxe Building Set
  • $32.99 $23.09
Maker Kit Large
  • $99.99 $89.99
Q-BA-MAZE 2.0: Big Box
  • $39.95 $27.97
Q-BA-MAZE 2.0: Starter Stunt Set
  • $49.95 $44.96
Buildings & Bridges
  • $35.95 $25.17
Stem Explorations: Gears Building Set
  • $14.99 $13.49
100 Piece Essentials Value Set
  • $39.99 $35.99
KEVA Structures: 200 Plank Set
  • $49.95 $34.97
Levers and Linkages
  • $35.95 $25.17
Wheels, Axels, & Inclined Planes
  • $35.95 $25.17
Build 12 Models
  • $29.90 $20.93
Cams & Cranks
  • $35.95 $25.17
Gears & Worm Drives
  • $35.95 $25.17
Gears! Gears! Gears!® 150-Piece Super Building Set
  • $49.99 $34.99
KEVA Contraptions: 200 Plank Set
  • $49.95 $34.97
Physics Principle Models
  • $147.40 $103.18
Playground Engineering & Design Building set
  • $24.99 $17.49
Pulley Drives
  • $35.95 $25.17
Q-BA-MAZE 2.0: Ultimate Stunt Set
  • $129.95 $90.97
Simple Machines Set
  • $49.99 $34.99
1-2-3 Build It!™ Car-Plane-Boat
  • $24.99 $17.49