About this item This fits your . Make sure this fits by entering your model number. Package: You will get 40inch 2, 0, 2,1 number balloons, these class of 2021 Balloons are separate so that you can configure them anyway you like. Material: 2021 black balloons are made of high quality aluminum foil mylar metetial, you can actually use them to decorate all your events in the year 2021 as they are re-usable! Perfect Party: Use this black graduation decorations 2021 Celebrate class of 2021 graduations party, prom decorations and many more. 2021 Balloons: This black number foil balloon is a great party decoration for graduation, weedding, birthday, baby shower, Halloween, anniversary party decorations supplies. How to Use: Easy to inflate by using a straw or an air hand-held pump, don't need too much pressure to inflate it. Inserting the straw into the valve of the balloons and blow into the straws to inflate. When the inflation is complete simply pinch the tails and remove the straw. The valve will seal automatically.