Decorative Iridescent White Balloon Weights with Sprays, perfect for Table Displays Iridescent White Balloon Weights/Centerpieces, 12" Box of 24 Weigh down balloons and keep them secure with a bang of iridescent rainbow-like color and celebration! Festive iridescent white balloon weights have heavy bases covered in metallic foil paper with bursts of foil stars shooting from the middle. Also make great table centerpieces for parties, showers, and banquets!