APPLICATIONS: Number balloons are As balloons for birthday parties, graduation ceremonies, anniversary celebrations, and wedding occasions, they create a cheerful atmosphere. USAGE METHOD: Inflate the balloon slowly, use a pump to inflate it to 90%, prevent it from bursting, If there are two layers of aluminum foil sticking, use your hands Pull apart the 2 layers of aluminum foil before inflating. STORAGE METHOD: When storing the balloon, It should be kept dry and cannot be wiped with water. SERVICE: If you have any problems with the purchase, please feel free to contact us, we will do our best to solve any problems.