Stirring Bar, Shape Octagon, Material Alnico, Product Type Stirring Bar, Diameter - Metric 8 mm, Overall Length - Metric 38 mm, Overall Width - Metric Not Applicable, Autoclavable Yes, Color White, Standards Compliant, Coating PTFE, Features Stir Bars Should Be Stored in Pairs to Maintain Magnetic Strength, For Use With Beakers, Round Bottom Flasks, Vessels