7 Pcs PTFE Magnetic Stirrer Mixer Stir Bar Spinbar Stirring

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.

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

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.

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