[40 inch Number Balloons]: The number balloons package includes 1*red number balloon . There are balloon numbers 0 1 2 3 4 5 6 7 8 9. You can combine any number. 40 inch number balloon are large and fills the room with a party vibe, levels up your party and the atmosphere. [High Quality Balloons]: The number balloons are made of high quality aluminium foil. Compared with number balloons made of others aluminium foil, our red balloons are of higher quality to stay inflated and avoid popping. We concern your party and provide the best insurance to it with higher quality happy birthday balloons, number balloon, party decorations. [How to Use]: Please DO NOT overfill the red number balloons, avoid pointed object and excessive friction. There are hanging holes on the top and at the bottom of the number balloons for you to tie or hang it. The vibrant color matches well with various themed party, great anniversary decoration, birthday decorations for girls and boys, wedding anniversary, can also be used with other balloons. [What to Fill With]: The red number balloons can be filled with air and helium. This red balloons stays full for up to 30 days with air and up to 24 hours with helium. After the party, the number balloon can be deflated and reusable for multiple times.