Package includes: 1 x 40" rainbow gradient digital balloon, 1 x mini crown, 1 x straw. (For connecting crown balloons and number balloons ；You can also stick balloons anywhere you want to decorate ). Premium Material - The balloons made of Aluminium foil, degradable, Non-toxic and environmentally friendly, safe and reliable. Features: The balloon has a crown, which is more beautiful and unique, the crown is detachable, easy to carry and simple to operate. After inflation, you only need to pinch the inflation port, and the balloon can be automatically sealed. When you need to deflate the balloon, you can insert a straw into the filling hole, loosen it slowly, Can be reused after deflation. Occasions: Suitable for birthday-themed parties, baby showers, birthday parties, classroom decoration, tropical summer parties, children's room decoration, etc. Unique and cute design:bright and colorful aluminum foil balloons meet your ideal party expectations, these balloons can be filled with air, helium or water."