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× DIY Acoustic Levitation Electronics Makes Learning Kits for Science and Small Experimental Standing Waves $22.99
$22.99
× Mini Hot Air Stirling Engine Single Cylinder Engine Motor Model STEM Educational Toy - Enginediy $20.99
$20.99
× Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Kit Education Toy $24.99
$24.99

Cart Totals

Subtotal $68.97
Total $68.97