BURNUR electric circuit motor kit, mini electric dc motor educational learning toys for kids DIY STEM toys science project Features: This kit is the ideal fun educational gift for kids and teenage who like STEM and science projects, can well develop kids learning skills and hand-on ability The electric circuit kit can inspire kids curiosity and creativity, well learn simple principles The circuit has multiple paths, each circuit is independent of each other, one circuit component is open, and the other branches work as usual Knowledge: Parallel circuit: A parallel circuit is one of two basic ways to make a circuit with one or more independent current paths between circuit elements that are connected in parallel. Series-parallel circuit, circuit physical picture method: first to first connection, end-to-end connection, first in and end out. The parallel circuit is such that there is more than one current between the circuit elements constituting the parallel connection. Independent paths are one of the two basic ways to form a circuit. Package includes: 1 x Instructions 5 x Wires 5 x Bulbs 3 x Shaft Propeller with 3 Vanes (Different Colors) 3 x Shaft Propeller with 4 Vanes (Different Colors) 2 x Motor Holder 1 x Switches 1 x White Motor 1 x Orange Motor 1 x Buzzer Sounder 2 x Bulb Holders 2 x AA Size Battery Holder (1 x 1.5V, Battery is NOT included) Warm Notice: 1. Please read the circuit pictures carefully, use the correct circuit diagram to avoid short circuit, short circuit will produce high temperature and cause the battery holder case to melt and burned. 2. The motor kit suitable for 8+ years, children should use under the supervision of adults.