These balloons are a great addition to your party. To use them, it's recommended to use a hand pump to inflate them because it's difficult to blow them up with your mouth. When inflating, don't stretch them to the maximum length to avoid explosion. They are very easy to twist, so you can create animal models or other shapes for a magical touch. These balloons are made of high - quality, non - toxic latex that is durable and super elastic. After the party, you can simply deflate them and store them in a cool, dry place for future use. Remember, these balloons are non - returnable and non - refundable.