Learn the basic circuit and electromagnetism principles and investigate the electricity by doing experiments A great electronics STEM kit for high school students to enhance what is learnt from physics class Easy enough for junior student and kids to explore in advance and get interested in physics science Includes more than 30 kinds of experiment tools Comes with a strong storage box Specification: Dimensions: 36 x 22.5 x 10 cm / 14.2 x 8.9 x 3.9 inches Package Includes: Ammeter 1pcs Voltmeter 1pcs Small lamp holder 3pcs Single pole switch 2pcs Battery box 3pcs Single pole double switch 1pcs Fixed resistance & diode board 1pcs Sliding rheostat 1pcs Electric bell 1pcs Hand crank generator model 1pcs Motor model 1pcs Resistance Law experiment device 1pcs Ampere Force experiment device 1pcs Multi-function base 1pcs Foil electroscope 1pcs Magnetic levitation experiment device 1pcs Magnetic drived car 1pcs Strip, , ring shape magnets 4pcs Resin rod and fur 1pcs for each Glass rod and silk 1pcs for each Slotted screwdriver 1pcs Copper wires 10pcs Fruit battery wires with pin 2pcs T shape Coil 1pcs Fans 2pcs Electromagnet making material 1pcs