Super magnet man sells rings magnetized both ways. Here are the ones magnetized across the diameter: http://www.supermagnetman.net/index.php?cPath=56 http://ww

Super magnet man sells rings magnetized both ways. Here are the ones magnetized across the diameter: http://www.supermagnetman.net/index.php?cPath=56 http://www.supermagnetman.net/index.php?cPath=56 I've placed two orders from this site over the past 7 years and it went great both times. The magnets are incredibly strong. These rings will definitely be in my next order I would hesitate to wear a solenoid, due to the induced current from magnetic fields.