The Silver Crown Balloon Set includes two 40 inch large Crown Balloons, three medium Crown Balloons, and ten small Crown Balloons. Durable Materials: Made of sturdy aluminum foil material with a complete shape, the sealing time can be maintained for over 6 hours after inflation. Inflation Suggestion: Small Crown balloons do not support helium gas. When using an inflator to inflate, please inflate intermittently multiple times to avoid inflating too fast and causing the balloon to burst. Suitable For Many Occasions:This Crown Balloons kit suits a wide scene, boys girls Birthday Party, baby shower, Karaoke party... They are perfect for balloons bouquet, floral arrangements, home and table decor, photo shoots, party games. Satisfaction Is The First Purpose:Any quality problem or suggestion, welcome email us. We will solve it for you once we get your message until you are satisfied. This set of crown balloons can be used for birthday party decorations, wedding decorations, anniversary decorations, baby showers, and singles party supplies. It is recommended to use them together with white decorations to create a holy and solemn atmosphere.