Stirring Bar Shape Octagon Material Alnico Product Type Stirring Bar Diameter - Metric 8 mm Overall Length - Metric 40 mm Overall Width - Metric Not Applicable Autoclavable Yes Color White Standards FDA Compliant ISO 9001 2015 SGS Certification USP Class VI Coating PTFE Features Center Molded Pivot Ring Minimizes the Contact Area Between the Bar and the Vessel Reduces Friction and Chattering For Use With Vessels