Rare Earth Extra Power Stir Bars, Oval, L × Diam. 20 mm × 10 mm, Z671630, Aldrich (CAT#: STEM-L-4927-Y)

Stirring bars using rare earth magnets have significantly increased magnetic strength compared to those using Alnico magnets, but more importantly they are almost totally resistant to demagnetisation.

Material: oval
oval PTFE-coated
Mfr.: Cowie, 001.620.RE
L: 20 mm
Diam.: 10 mm

Rare Earth Extra Power Stir Bars, Oval, L × Diam. 10 mm × 5 mm, Z671622, Aldrich (STEM-L-4925-Y)
Rare Earth Extra Power Stir Bars, Octahedral, L × Diam. 13 mm × 8 mm, Z671592, Aldrich (STEM-L-4926-Y)