I think if you go to jedds you will see what band belongs to what birds:
http://www.jedds.com/Detail.bok?cat...and:Bands,+Seamless&no=238&searchpath=7027251
It looks more like size 7 assuming it is a performance rollers.
http://www.jedds.com/Detail.bok?cat...and:Bands,+Seamless&no=238&searchpath=7027251
It looks more like size 7 assuming it is a performance rollers.