American Educational Electroscope with Electrostatic Balls, 4.5" Base x 9" H -

American Educational Electroscope with Electrostatic Balls, 4.5" Base x 9" H

• Electroscope with electrostatic balls
• A visible demonstration of electrostatic activity is achieved with this unit
• The electrostatic balls are suspended on an aluminum hook attached to a solid base
• When a static change is brought near the balls
• Measures 4-1/2" base diameter by 9" overall height