Just received my magnets I ordered from eBay the other, but they did not have north or south marked on them. Upon reading the instructions it said that you can determine the poles with a compass. The North compass needle will point to the South pole of the magnet.

But I did not have a compass, so I have spent the last few days looking for one. I did find one a a cheap shop, not sold as a compass but a lock the compass was extra.

Now I know what side to place on my skin so I am hoping they will work.

They also tell you to use Micropore tape as it is the only one that can be worn for days without irritating the skin. They also say to sandwich the magnet between two layers of the tape and trim off the excess leaving a 1/8 inch margin around the magnet.

I received the Micropore tape with the magnets I ordered from eBay.

Hope this is of help