How to attach panniers

[SteveParry]

I hope the photos work! I think these may be front panniers - not sure... But I can't figure out how to attach them. I want to attach to my rear rack - see photo. There are no clips only one strap at bottom of each and the velcro'd together pair have two rings on each presumably for attaching at top. But if they are meant for the front perhaps this is unwise/dangerous? Does anyone have any ideas? Thanks, Steve

Photos: https://www.dropbox.com/sh/pkaslbjyfyxciht/AADfrTlfmNkeLmoDdWJHsMm8a?dl=0

 

[lpretro1]

look like front ones so they won't fit the rack safely