Toughness and longevity confident: With vinyl, a synthetic resin or strong plastic substance, we assure you of the quality and overall performance that our custom vinyl banners really need to provide you with. Hem is suggested for outdoor banners—with or with out grommets. It prevents the material from unraveling. http://louisxqnrz.mpeblog.com/16532398/the-vinyl-banner-printing-diaries