1、STABLE PERFORMANCE: Magnetic stirrer bar is made of magnet, coated with PTFE, which is inert to most chemicals and solvents, resistance to strong acids and alkalis, water and various organic solvents. 2、TEMPERATURE RESISTANCE: It has excellent performance of high and low temperature resistance, the temperature resistance range is ‑196℃~250℃, it has excellent mechanical toughness, even if the temperature drops to ‑196℃, it can keep 5% elongation. 3、WIDELY USED: Magnetic stirrers bars are widely used in scientific research, universities, laboratories in industrial and agricultural sectors, and are often used to stir mixed substances. 4、HIGHLY EFFICIENT: Magnetic stir bar usually used with magnetic stirrer or heating stirrer, it is quieter and more efficient than other stirrers. 5、PACKAGE INCLUDES: The package includes 10pcs laboratory magnetic stir bar, enough quantity to meet your actual needs. Item Type: Magnetic Stir Bar Material: PTFE, Magnet Size: Approx. 60x9mm / 2.36x0.35in Usage: Magnetic Stirrer Bars Are Used to Stir Liquids or Solutions in Biological and Chemical Fields, Research Laboratory Applications and More. Usually Used with Magnetic Stirrers or Heating Stirrers, It Is Quieter and More Efficient Than Other Stirrers 10 x Magnetic Stir Bar