In a lot of magic fantasy works there always seems to be something which is able to suppress magic. And apparently, that applies to WoM as well.
Which is kinda weird. The handcuffs you get when you’re arrested seem to stop you from doing magic and things, however they prove to be completely destructible by other people.
A direct hit is strong enough to overcharge them probably, and melee attacks simply break them.
It probably doesn’t diffuse magic, it only absorbs it and then converts it into chaos radiation at an equal rate, a sudden surge of magic energy overcharges the cuffs and breaks them.
obviously its not perfect, otherwise MC soldiers would probably wear armor made of it
it likely disrupts the flow of magic, therefore stopping someone using magic with it on,
but it isn’t capable of just instantly absorbing big magic attacks