Package: large birthday number balloons, straw included, 40 inch <br><br>Birthday Number balloons is self sealing, when the inflation is completed, please put the seals to pinch flat, the balloon comes automatically sealing glue<br><br> ombre (rainbow colorful) number 1 balloon is fashion and nice, it's a good idea for birthday party and festival decoration<br><br> Material: aluminum foil<br><br> <b>Tip:</b><br>All Aluminum Foil Balloons are detected by the machines, if there is a holes when inflate, please use the tape to seal it, after party, kindly contact with us, then we will replace or refund for you.</b>Any problem or you need help, Kindly contact with us, we will solve it for you at once. Wish you have a nice day<br><br> <b>WARNING: </b>CHOKING HAZARD- Children under 8 yrs. Can choke or suffocate on uninflated or broken balloons. parents supervision required. Keep uninflated balloons from children. Discard broken balloons at once.