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Stem Model enginediy | Level 15 12V 2 Stroke Methanol Nitro Engine Generator Model With Cooling Fan (5V 1.5A Usb Charging)Stem Model enginediy | Level 15 12V 2 Stroke Methanol Nitro Engine Generator Model With Cooling Fan (5V 1.5A Usb Charging)
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Experiment Model

Stem Model enginediy | Level 15 12V 2 Stroke Methanol Nitro Engine Generator Model With Cooling Fan (5V 1.5A Usb Charging)

$98.66
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Stem Model enginediy | Level 15 12V 2 Stroke Methanol Nitro Engine Generator Model With Cooling Fan (5V 1.5A Usb Charging)Stem Model enginediy | Level 15 12V 2 Stroke Methanol Nitro Engine Generator Model With Cooling Fan (5V 1.5A Usb Charging)
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Mini Generator

Stem Model enginediy | Level 15 12V 2 Stroke Methanol Nitro Engine Generator Model With Cooling Fan (5V 1.5A Usb Charging)

$98.20
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Stem Model enginediy | Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Model Education ToyStem Model enginediy | Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Model Education Toy
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Experiment Model

Stem Model enginediy | Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Model Education Toy

$23.79
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Stem Model enginediy | Magnetic Levitation Motor 20000Rpm High-Speed Hall Effect Sensor Brushless Motor Science Toy - EnginediyStem Model enginediy | Magnetic Levitation Motor 20000Rpm High-Speed Hall Effect Sensor Brushless Motor Science Toy - Enginediy
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Stark® Motor & Model

Stem Model enginediy | Magnetic Levitation Motor 20000Rpm High-Speed Hall Effect Sensor Brushless Motor Science Toy – Enginediy

$41.39
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Stem Model enginediy | Magnetic Levitation Motor 20000Rpm High-Speed Hall Effect Sensor Brushless Motor Science Toy - EnginediyStem Model enginediy | Magnetic Levitation Motor 20000Rpm High-Speed Hall Effect Sensor Brushless Motor Science Toy - Enginediy
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Solar Magnetic Levitation Motor

Stem Model enginediy | Magnetic Levitation Motor 20000Rpm High-Speed Hall Effect Sensor Brushless Motor Science Toy – Enginediy

$35.99
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Stem Model enginediy | Magnetic Levitation Reactor With Light And Wooden Base Creative Sci-Tech ModelStem Model enginediy | Magnetic Levitation Reactor With Light And Wooden Base Creative Sci-Tech Model
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Experiment Model

Stem Model enginediy | Magnetic Levitation Reactor With Light And Wooden Base Creative Sci-Tech Model

$58.89
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Stem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational ToysStem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational Toys
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Solar Magnetic Levitation Motor

Stem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational Toys

$26.39
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Stem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational ToysStem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational Toys
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Stark® Motor & Model

Stem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational Toys

$26.79
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Stem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational ToysStem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational Toys
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Experiment Model

Stem Model enginediy | Magnetic Levitation Solar Motor Model Fan Blade Mendocino Motor Science Educational Toys

$27.19
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Stem Model enginediy | Magnetic Suspension KitStem Model enginediy | Magnetic Suspension Kit
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Experiment Model

Stem Model enginediy | Magnetic Suspension Kit

$23.99
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Stem Model enginediy | Marx Generator 10 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled ModelStem Model enginediy | Marx Generator 10 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled Model
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Experiment Model

Stem Model enginediy | Marx Generator 10 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled Model

$96.90
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Stem Model enginediy | Marx Generator 20 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled ModelStem Model enginediy | Marx Generator 20 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled Model
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Experiment Model

Stem Model enginediy | Marx Generator 20 Stage High Voltage Lightning Experiment Electric Arc Educational Assembled Model

$97.96