DescriptionThese are PTFE coated magnetic stir bars, works perfect, these have been extremely valuable with mixing solutions together. Widely applied in scientific research, universities, laboratories in the industrial and agricultural sectors, and also can be applied to stir mixed substances.Features- Color: White. - Material: PTFE. - Size: 3.00X0.50X0.50 cm/ 1.18X0.20X0.20 inch. - The maximum working temperature is up to 250 degrees Celsius. - Mixer stir bar is resistant to high temperatures, corrosion, abrasion and high rotational forces. - Stir bars are coated with PTFE covering, which is chemically inert. - Cylindrical shaped design, smooth surface, reduce friction and improve smooth rotation - Used to stir a liquid or solution in biological, chemical, and research laboratory applications.