Egg-shaped stirring bars provide their own pivot point without a separate ring or abrupt change in contour. Designed especially for use in round-bottom vessels, they spin unrestricted by the vessel contour. The magnet itself is egg-shaped with a Teflon PTFE coating, except for the three smallest sizes which have a cylindrical magnet in an egg-shaped Teflon PTFE coating.
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Industrial & Scientific > Laboratory & Science > Lab Supplies > Stir Bars