7-Piece Mixed Size PTFE Magnetic Stirrer Bars from INTLLAB - Type C

Underwater Surfer: The 35mm, the two 30mm, and the 15mm worked great! The 25mm, the 20mm, and the 10mm didn't work well, as they seemed unbalanced, so they were noisy and it was very hard to get them to work. I am using these with the INTLLAB Magnetic Stirrer.

United States on Feb 16, 2023

Luke the Duke: Good price, good product

Canada on Sep 17, 2022

kyle: The media could not be loaded.  Nice selection of sizes spill well on the plate with thick oil

United States on May 27, 2022

Analytical Philosopher: These magnetic stirrers worked very well. I would recommend them.

United States on Feb 27, 2022

Stefan: These magnets are smooth compared to the one that came with my machine which has a ridge. I see the median ridge makes a difference when it comes to getting things ti start stirring. These would be improved with ridge around their equator.

Canada on Dec 01, 2021

Jim Carrie: Quick and easy got what I needed

Canada on Mar 13, 2021

greg d: Fine

Canada on Nov 17, 2020

Tom Frantastic: I bought these to replace my LOST set... And the LOST ones turned up right AFTER two uses of the new ones. These work very well for me and have a nice little case. SO... I hope not to lose any of these.

United States on Oct 03, 2020

Paul T. Maack: These are PTFE coated magnetic stir bars. They do the job quite well. I'd highly recommend them if you're doing anything where you need these. Decent price, and definitely good quality. Mine had a NICE thick coating, such that one of them fell in the garbage disposal, and made a terrible noise when I turned the thing on. After extraction, I saw a pretty heavy cut in the coating, but it wasn't cut all the way through. I use mine for food, so that one's in the trash (better safe than sorry) but if you're doing something else, this would probably have still worked fine after being in the garbage disposal (that noisy thing in your sink that beats up food and allows it to go down the drain, if you're reading this from some location where you don't use that same term.).

Would buy again.

United States on Sep 16, 2020

Tyler from Hamilton: You get what you pay for. The PTFE coating is fine, not too thin or anything but the magnets are clearly not the best. I think probably just cobalt magnets when lab grade ones are neodymium/rare earth magnets. I used the large one in an oil bath at 150⁰C and well it isn't very magnetic anymore. The smaller ones couple much stronger to each of my three hot plates (Corning, VWR, Scilogex). If you want to stir room temperature sure but l wouldn't be too aggressive heating these.

Canada on Dec 07, 2019