Sizes vary by design: lengths range from about 14 inches up to 42.28 inches, and widths range from about 18 inches up to 20.8 inches.
Common styles include letter-style "Bride" banners (cursive/script letters) and a large diamond ring–shaped foil balloon.
They are made from foil; descriptions note durable foil that helps the balloons retain their shape.
Banner letters include loops so you can string them on rope or ribbon; listings also describe them as easy to incorporate into photo backdrops and displays.
They do not require batteries or electronic power; listings state "Battery: No Battery Used."
They're described for bridal showers, bachelorette parties, and wedding celebrations, and are often used for photo backdrops and the bride's getting-ready space.
Descriptions say they are easy to inflate and display; letter banners include loops to simplify hanging.