An assortment of Teflon resin-coated, metric polygon stir bars contained in PTFE with center molded pivot rings. The molded pivot ring minimizes the contact area between the bar and the vessel, reducing friction and chattering. Damage to plastic containers is also diminished. Multifaceted surface adds turbulence relative to similar size smooth cylindrical stirring bars.
This is only for VWR International, Model 74950-286. It may differ from the image shown in color, features, may be an accessory, etc. Please refer to the model number or contact us if you have any questions.