Magnetic clasps for necklaces

I have been asked to make a light necklace but with a magnetic clasp as the lady has severely arthritic fingers. I have see a number on eBay etc but wonder if any of you have particular favourites. Size is a problem I think….the smaller or slimmer the better.
David
Ps I should add this is to be made with be a 2.3 mm silver chain.


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Cookson do a number of these. My preferred option are NVF M024, which lie flat and are very neat but if you really want small, these are fine - NVF M053. They also do some round versions, but for some reason, these seem to be less comfortable to wear.

By some of these and make you own
https://magnet.com.au/products/neodymium-disc-3mm-x-2mm