From the LEGO® City Party Supply Collection. LEGO® City Hanging Swirl Decorations. Fun addition to your party theme, these hanging decorations are a great match to the LEGO® City theme. Helicopters, police bikes, police men and criminals are on the ends of 6 of these streamers. Includes a variety of 12 swirl decorations per package. Swirls measure 18" long and swirls with cutouts measure 24" long.