Fisher Scientific Stirring Bars Joaoxoko Magnetic Stir Bar Set 12pcs PTFE Magnetic Stirrer Mixer Stir Bar White 0 8 Inch Laboratory Stirrer Mixer Bar Type B Mycology Supplies Magnetic Stirrer Bar Magnetic Stir Bars PTFE It is not easy to demagnetize, resistant to high temperature, corrosion, wear and high rotational force, and has a longer service life than other stirring bars. The ALNICO magnetic stir bar withstands temperatures up to 250°C, making them suitable for use with both unheated and heated stirrers Scientific Design:These stirring bars have a pivot ring in the center. Stonylab 5-Pack Stir Bar Set, 20 Mm PTFE-Coated Magnetic Stirring Bars White Stir Mixer For Stirrers 5 Pk Suitable for a variety of stirrers:Magnetic stir bars can be used with various types of magnetic stirrers or heating stirrers on the market Stirring bars are widely used in scientific research, colleges and universities, industrial and agricultural laboratories, and home use Magnetic Stir Bars ensure smooth and efficient stirring in your lab. High-quality PTFE coating offers exceptional chemical resistance Joaoxoko Magnetic Stir Bar Set 12pcs PTFE Magnetic Stirrer Mixer Stir Bar,White 0., 8 Inch Laboratory Stirrer Mixer Bar,Type-B Mycology Supplies Magnetic Stirrer Bar, Package Included:6., 4mm×20mm/0., 8 inches. Durable Material:The stirring bar is made of Teflon and high-quality magnets. Quantity: 12 pieces, B shape: cylinder with pivot ring