Has anyone used a 2 inch stir bar with the StirStarter that they sell on eBay? Thanks.
I am using this stir bar:
Awesome! I had hoped with the center ring it would work. Exactly the reason that I asked!!!
I use one of these http://sciencekit.com/starburst-magnetic-stirrer/p/IG0024796/ and can’t speed it up much past where it creates the vortex or it’ll spin off center. I’ll have to try one of these with the center ring.