Bel-Art Spinpak Micro Magnetic Teflon Stir Bar Assortment 371620000

- Round, cylindrical shape provides better centering and creates less turbulence than a multisided shape
- Teflon (PTFE) casing is chemically inert, can be used with corrosive chemicals, and helps reduce friction and wear while spinning
- Smooth surface provides quicker cleanup and less risk of cross-contamination than bars with pivot rings and allows the bar to spin on the bottom of the container to disperse light sediment and air bubbles
- Micro stir bar (also called a flea) for stirring small volumes of liquid in containers such as test tubes, vials, and gradients
- Contains six stir bars, two each in the following sizes: 8 x 1.5 mm (0.315 x 0.059"), 7 x 2 mm (0.276 x 0.079"), 10 x 3 mm (0.394 x 0.1184")