Ronyes Lifescience PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring (35mm, 30mm, 28mm, 25mm, 20mm, 12mm, 10mm)

these work just fine, haven't had an issue yet using them with my magnetic stirrer/hot plate. didn't realize how small the smallest ones were and don't know if I'll ever find a use for them to be honest as the smallest one is about the size of a Rice Crispy.. but they come in a nice cardboard box with foam cutouts for each for storage. they also double as boiling beads, lol. cannot complain for $10 as they do what they say and I've had no issues.

NO ISSUE WITH PRODUCT

notable value if you're using very small beakers for your purposes. personally only really used the larger ones, but if i wanted to stir a tiny beaker it's good to have for the price point. otherwise, if you're using 250mL or more then maybe just stick to packs that have bars that are the same size on the larger side, because i don't think i'll ever use the smallest ones

Depending on the application, I could see a couple of the middle sizes having trouble staying centered. I actually use the smallest one in Aquarium testing test tubes and it works great. I also use the larger ones for mixing fertilizers. Its nice to have a cheap set of different sizes on hand if the need comes up.

They do exactly what they are supposed to👍

good

So far I have only used the largest one in my yeast stirrer but wow what a difference. So much quieter then the one that came with the stir plate and it works fine.

As advertised

Le sirvieron bien a mi hijo

Good set, I mainly use the larger ones but I ran the small ones as a test and they’re pretty good too, except for the smallest one which probably has to do with the size of the magnet in my stirrer but it’s okay anyways

These magnegic stirrers are exactly as pictured and described. They work perfectly and I am very pleased.

They spin lol. Keep them in the box, the small ones are easy to loose.

Good selection of stir bars size.