• 40-inch rose gold number 30 balloons, perfect for decorating birthday parties and anniversaries. • Includes 12-inch confetti balloons with number 30, 3 metallic 12-inch balloons, 2 straws, and a ribbon. • Made with high-quality aluminum foil, with a metallic appearance, sturdy and durable. • The balloons are easy to inflate and deflate, with self-sealing valves that do not require knots. • They can be inflated with air or helium, and are reusable. • Perfect for sticking on walls, windows, or doors, or for placing on the bed, floor, or table. • Avoid inflating more than 90% to prevent explosions due to high temperatures.