Want to convert your Nemesis to a magnetic switch? Some websites are actually trying to sell these for $15.00 per set. Get 5x more for just $2.40
These are Strong NdFeB Magnet Rings. They have an outer diameter of 13mm, an inner ring diameter of 9mm and are 1mm thick.
These DO fit the nemesis. Verified and bought from Fasttech.
Sold in lots of 10.
$2.40 FOR 10