Stem Kits

Showing 19–27 of 28 results

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  Stem Kit – Hand Crank Power Generator, Level I

  $14.99
• 

  Stem Kit – Hydraulic Shovel, Level III

  $24.99
• 

  Stem Kit – Hydraulic Table Lift, Level III

  $24.99
• 

  Stem Kit – Magnetic Levitation, Level I

  $14.99
• 

  Stem Kit – Marching Brachiosaurus, Level III

  $24.99
• 

  Stem Kit – Solar Fan, Level I

  $14.99
• 

  Stem Kit – Sports Car, Level II

  $19.99
• 

  T-Rex Walking

  $24.99
• 

  Wind Energy

  $17.99