Learn the science of connecting an electric circuit.
Construct your own door buzzer and place it behind your door.
It's cool and fun!
Package Dimensions: 17cm x 22cm x6cm
Recommended Age: 8+ years
Learn the science of connecting an electric circuit.
Construct your own door buzzer and place it behind your door.
It's cool and fun!
Package Dimensions: 17cm x 22cm x6cm
Recommended Age: 8+ years