Snap Circuits STEM by Elenco is an educational electronics kit that teaches electricity, magnetism, and basic circuitry through hands-on building; includes over 45 parts and an illustrated manual with over 85 projects, with components such as a meter, electromagnets, motor, lamps, switches, compass, LEDs and a relay; requires three AA batteries; ideal for classroom or home STEM learning for ages eight and up; contains small parts and magnets that are choking and ingestion hazards so adult supervision is recommended.