We invented a new way to control the time on your glass. Simply place the magnetic stopper over the neck of the glass and the timer stops!
a cool new magic trick - stop the flow of iron nanospheres with the silicone magnet
The magnetic stopper interrupts the flow of the solid iron nanospheres and keeps your place during your timeboxing sprint.
Grabbed a few extras to have just in case the gremlins decide they need one. Fun to use on the Esington.