Divine Mercy in my Soul PDF File†††† ††††††
FOOTNOTE 86 I decided at once to make a novena to the Merciful Lord to which I added a mortification; namely, that I would wear chains  on both legs throughout Holy Mass. †††††††††††(Diary 364) †††††††
† The chain, like the belt (cf. ), is made of a wire mesh in the shape of a bracelet and is used as an instrument of penance.
† The "iron belt" was a kind of belt made of fine wire mesh, used as an instrument of penance. The Sisters could wear the belt with the superior's permission and only for a specified period of time.