Demonstrate key electrostatics concepts with this kit. Contains everything necessary to construct two flask form elctroscopes. Detailed manual included experiments using two electroscopes for positive and negative charge studies, and a Faraday's Pail experiment. Kit includes 2 Glass Flasks, 2 aluminum disc terminals, 2 sets of 4 foil leaves, 2 electrode assemblies, one aluminum can (Faraday Pail), 1 glass rod, 1 silk cloth, 1 acrylic rod, and 1 wool cloth.