Stirring Bar, Shape Egg, Material Alnico, Product Type Stirring Bar, Diameter - Metric 20 mm, Overall Length - Metric 64 mm, Overall Width - Metric Not Applicable, Autoclavable Yes, Color White, Standards FDA Compliant, Coating PTFE, Features Stir Bars Should Be Stored in Pairs to Maintain Magnetic Strength. This item has been restricted from sale in the following state (s): []