1.Usage: Used to stir a liquid or solution in biological, chemical, and research laboratory applications.2:Using way: 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.3:High quality material:PTFE casing is chemically inert, be used with harsh chemicals and reduces friction while in spinning.4:Perfect design:Built-in pivot ring helps reduce vibration and wear during stirring, individual shapes create different vortexes for efficient and effective stirring.5:Different size set:Different size can appear all our needs.Specification:Colour:WhiteMaterial:PTEEPackage Contents:10 * rod magnetic mixerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.