Retainer rings should match the butt diameter of your flagpole at the base:

5'x4' American Cotton Flag features sewn stripes and embroidered stars and is finished with a cotton header and brass grommets

Cheer on your University of Idaho Vandals with this 28"x40" house flag

This quality 4'x6' flag of Gabon features three sewn stripes

The flag is finished with a strong roped header and a snap & ring for attachment to your rigging or flagpole

2x3 Yemen Outdoor Nylon Flag seattle-seahawks Retainer rings should match theThis quality 2'x3' flag of Yemen features three sewn stripes. Made from commercial quality 200 denier nylon fabric, this durable flag is finished with a strong polyester header on the hoist with two brass grommets for easy attachment to your flagpole and has a fully sewn hem on the fly end. Made in the USA.