AyinLab PTFE Magnetic Stir Bar, Magnetic Stirring Rod, 8pcs Magnetic Stir Bar Set, 10mm/15mm/20mm/25mm/30mm/35mm, Magnetic Mixing Bars for Magnetic Stirrer, Auto Magnetic Mixers and Lab Stirrers

I purchased this pack of stir bars for my resin setup, and they have been excellent. The coating ensures that the bars are chemical resistant and easy to clean, which is essential when working with different types of solutions. The diff. sizes are perfect for mixing in various containers, and the magnetic strength is just right for efficient stirring. I've used them in both hot and cold liquids without any issues. These stir bars have improved the consistency of my resins (air bubbles and thicker coloring) A must-have for anyone in need of reliable and durable stir bars!

Work great. Good quality

Works perfectly. I like the case that it came in too. I use different size beakers and containers to mix chemicals in at work, and this case allows me to use different size magnetic stir bars to fit the job. I have put them through some pretty harsh environments (acids, solvents, polymers, heat over 200C for hours, etc.), and have not had an issue yet.

The set has different sizes. I have found that they are exactly as described and they work well. The price seemed to be pretty good.

I worked in a pharma lab for decades and we had thousands of stirbars all stuck together in a drawer. It is nice to see them separated in a display case for all the work they do!