8Pcs Magnetic Stir Bar Set PTFE Stirring Rod Mixing Bars For Laboratory Stirrer
8 x Stirring Bars. WIDE TEMPERATURE RANGE: These magnetic stir bars are made of cold and heat resistant FTFE material and can operate at temperatures ranging from -196℃ to 250°℃ / -320.8℉ to 482℉. Material: PTFE.