New in original packaging. Listing is for a pack of 9 individual stir bars. Description from VWR:
Octagon magnetic stirring bars with integral pivot ring are the most commonly used shape.
Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon® PTFE low-friction coating; durable and inert
Pivot ring aids in reducing friction and chattering (58948-091 does not have a pivot ring)
Autoclavable
Manufactured in a registered ISO 9001:2008, as verified by SGS certification
Interrupted profile provides greater surface area and added turbulence when compared to the smooth surface of cylindrical bars.
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