Doppler Effect Apparatus
An economical plastic wave demonstration spring. To better illustrate and demonstrate the fundamentals of wave motion.
Economical, but strong plastic construction can be stretched up to 12 feet.
Diameter: 3 Inch (75mm)
Collapsed Height: 2.36 Inch (60mm)
Extended Length: 12 Ft (365cm)
Sold individually or at a lower cost as innerpacks of 12 pieces.