Seisyll Family Crest Flag / Coat of Arms Flag. You will receive a high quality 3' x 5' Polyester flag with two brass grommets. Proudly display your family heritage with this flag, or hang as a banner on a wall. These flags make the perfect gift for any occasion. keywords: flags, banners, code of arms, heraldry, shield, family, shields, genealogy, coats, crests, emblem, surname, last name, names, name