USA LAB 8 Piece magnetic stir bar set various sizes

• Used to stir a liquid or solution in biological, chemical, medical and research laboratory applications.
• The stir bar is placed inside a container of liquid or solution that is seated on a magnetic stirrer, creating a rotating magnetic field using a rotating magnet or multiple stationary electromagnets.
• Stir bars are coated with Teflon (PTFE) covering, which is chemically inert and can be used with corrosive chemicals, also helps reduce friction and wear while spinning.
• Individual shapes create different vortexes for efficient and effective stirring.
• Brand new, never used PTFE stirrer bars.