Stirring Bar Shape Triangular Material Alnico Product Type Stirring Bar Diameter - Metric 9.6 mm Overall Length - Metric 16.5 mm Overall Width - Metric Not Applicable Autoclavable Yes Color White Standards FDA Compliant ISO 9001 2015 SGS Certification USP Class VI Coating PTFE Features Each Size is Manufactured for a Specific Size Tube and Can Be Trimmed to Fit if Needed Without Affecting the Magnet For Use With 3 to 5 mL Vials