Combination bottle opener and can puncher (church key). Chrome-plated steel, 4.25 inch (108 mm) long.
https://en.wikipedia.org/wiki/Church_Key#/media/File:Combination_can_bottle_opener.jpg
A church key beer opener
Use a towel with similar fabric to a white men's undershirt or the undershirt to provide a better grip friction and reduced moisture if your hand or the jar is wet
Put between hand and lid and turn normally
@shortstories she needs help she's a female.
I learned ways to open those kinds of things from women in the baby boomer and older generations who can open jars themselves without a man's help by thinking it through
