Love how the inserts' "MAGNET POLARITY FOR EACH MAGNET" calls out polarity for top side and bottom side in separate columns as if each one could be a wee horseshoe magnet with the poles pointed in the same direction.

I momentarily confused about how how bar magnets in a ring could be oriented to top and bottom until I reviewed page 2 which stipulates "top" means the part of the insert facing the person and "bottom" into the device.