Stirring Bar Kit, Shape Octagon, Material PTFE, Product Type Stirring Bar Kit, Diameter - Metric 8 mm, Overall Length - Metric 25 mm, 38 mm, 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, For Use With Beakers, Round Bottom Flasks, Vessels, Package Quantity 6. This item has been restricted from sale in the following state (s): []