Stirring Bar

A stirring bar, often referred to as a magnetic stir bar or flea, is a small, rod-shaped laboratory tool used for stirring liquid solutions. It is typically made from materials like Teflon, glass, or ceramic, with a magnetic core. Stirring bars are designed to be placed in a container along with a magnetic stirrer or stir plate, which generates a rotating magnetic field. As the magnetic field spins, it causes the stirring bar to rotate and effectively mix the contents of the container. Stirring bars are crucial for achieving consistent and even mixing without the risk of contamination, making them a common fixture in chemistry, biology, and other scientific research laboratories.