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Gears! Gears! Gears! Machines In Motion
  • $39.99 $27.99
Stem Explorations: Gears Building Set
  • $14.99 $13.49
Build & Block
  • $17.99 $12.59
K'Nex Intro To Simple Machines: Gears
  • $39.99 $35.99
OSMO - Imagination Edition Manipulatives - PreK-5
  • $150.00 $135.00
Stem Explorations: Levers & Pulleys Building Set
  • $14.99 $13.49
Wheels, Axels, & Inclined Planes
  • $35.95 $25.17
30 Dart Packet & Target
  • $14.99 $9.78
Build 50 Models Motorized
  • $69.90 $48.93
Cams & Cranks
  • $35.95 $25.17
Catapult
  • Catapult
  • Binding: Game or toy
  • ISBN: EDU-61009
  • $19.90 $13.93
DaVinci Invention Land and Air Models
  • $102.54 $71.78
DaVinci Invention Sea Models
  • $61.19 $42.83
Gears & Worm Drives
  • $35.95 $25.17
Great Kite
  • $19.90 $13.93
GUMBALL MACHINE
  • $24.99 $17.49
Intro to Simple Machines Levers & Pulleys
  • $39.99 $35.99
K'Nex Intro To Simple Machines
  • $39.99 $35.99
Leonardo da Vinci - Aerial Screw
  • $19.95 $13.97
Mechanical Butterfly
  • $19.90 $13.93
Paddleboat
  • $19.90 $13.93
Physics Principle Models
  • $147.40 $103.18
Pulley Drives
  • $35.95 $25.17
Self-Propelled Cart
  • $19.90 $13.93