Dynalon 303775 16x127mm PTFE Round Stirring Bar with Ring

Features:

• ALNICO V magnetic cores which are one of the most powerful permanent magnet alloys available.
• Stir bars should not be stored in a random mass or dropped on a hard surface, especially steel.
• Stir bars should be stored in pairs to maintain magnetic strength.
• In general PTFE thickness accounts for 18% of stir bar diameter.