Description Are you looking for a professional, yet affordable magnetic needle? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further Our professional magnetic needle must meet you needs. It is one of the best choices for you. Features - Color: Random color- Material: Plastic.- Size: 2.80X2.80X2.60cm/1.10X1.10X1.02in.- The small magnetic needle has certain magnetism. When energized, the magnetic field generated around the electricity can be felt by the magnetic needle.- Show the direction of magnetic field and current.- Make it easier for students to understand electromagnetic induction.- Exercise students' hands-on ability and stimulate their imagination.- Comes with stand, easy to use.Packing list: 16 x Magnetic Needles