Lab Glassware PTFE Magnetic Stir Bars | White, No Pivot Ring | C3x5 to C8x45

These PTFE magnetic stir bars are white and made without a pivot ring, for stirring liquids in flasks, beakers and other lab glassware on a magnetic stirrer. The listing offers 13 size options from C3x5 up to C8x45, with the first number as diameter and the second as length in mm, supplied in packs of 3 or 5 bars depending on size. Features and benefits: - PTFE material - a smooth plastic surface for stirring in flasks and beakers - Plain bar without a pivot ring - a simple bar shape for use in flasks - 13 size options from C3x5 to C8x45 - match the bar to the vessel, from small vials to larger flasks - Packs of 5 bars for C3x5 to C8x25 and packs of 3 bars for C8x30 to C8x45 - spare bars on hand at the bench - White colour - easy to see against the liquid in the vessel - Sizes sold in diameter x length in mm - simple to check against the size chart on the page Applications: - Stirring solutions in conical flasks and beakers on a hotplate stirrer - Mixing reagents in school and college practicals - Mixing buffers, solvents and samples in a workshop or research lab - Stirring brewing, food and cosmetics test batches - Keeping spare bars at hand in a lab consumables drawer In the box: PTFE stir bars in the size and pack quantity chosen in the options: 5 bars for sizes C3x5 to C8x25 and 3 bars for sizes C8x30 to C8x45. Note: Choose a bar length shorter than the inner diameter of the vessel so it can spin freely. Use with a magnetic stirrer and follow the stirrer maker's guidance on speed and load. The photos on the page are for illustration only: they do not show every size listed, and some show other bar sizes than the options.