Stirring Bar Shape Octagon Material Alnico Product Type Stirring Bar Diameter - Metric 8 mm Overall Length - Metric 20 mm Overall Width - Metric Not Applicable Autoclavable Yes Color White Standards FDA Compliant ISO 9001 2015 SGS Certification USP Class VI Coating PTFE Features Absence of a Pivot Ring Allows the Spinbar to Stay Close to the Bottom of the Vessel Enabling Scraping of Solids Optimal Coupling with Magnetic Spindrive as Entire Length of Stir Bar is Close Contact