This oval-shaped PTFE magnetic stir bar with a 25 mm diameter at the widest center point and 70 mm length is designed for efficient and smooth mixing in laboratory settings. The diameter gradually decreases toward both ends, ensuring reduced friction, improved rotation stability, and reliable stirring even at higher speeds. Manufactured from high-quality PTFE (Polytetrafluoroethylene), it provides excellent chemical resistance, easy cleaning, and outstanding temperature durability — ideal for use in chemical, biological, and industrial laboratories. Product Details Feature Specification Material PTFE (Polytetrafluoroethylene) Shape Oval (tapered towards the ends) Center Diameter 25 mm Length 70 mm Temperature Range –200 °C to 260 °C Chemical Resistance Excellent – suitable for most chemicals & solvents Application Magnetic stirring in laboratory vessels Perfect for flasks, beakers, and reactors in routine laboratory procedures, whether in heating or cooling environments.