Huge Size and Beautiful Balloon: You will receive 40 inch big balloons, also the package come with a straw for easily inflate and deflate. Birthday balloons can be combined as you like. Enjoy the DIY time to create your amazing party Durable and Reliable Materials: Our number balloons birthday decoration are made of top quality aluminum foil materials. High quality embossed technology with neat edges that are not prone to explosions and leaks, is ideal for birthday parties Wide Application: The foil number balloons great for any birthday celebration, anniversary, graduation, marriage proposal, engagement, baby shower, holiday celebration, Christmas party, New years eve, special event or various celebration party Amazing Photo Prop: It is a huge size and unique color visual effects, which looks good when taking pictures. Make great photo booth props to hold when posing for photos! DIY on the balloon to customize it and add a fun environment for everyone Quick & Easy to Decorate: The number balloons easy to inflate balloons and self sealing. You can choose to inflate them manually with your mouth using a straw or use an electric or manual air pump for quicker inflation The large number balloons are prefect for birthday party or anniversaries events decorations, which will make the celebration vivid and amazing. The birthday decorations balloon is so huge and give big impact, will make the events more charming and impressive, leave memorable time for the guests.