These paper balloons are called "kami-fusen" in Japanese, traditional toys for children. They can be inflated through a small hole and gently bounced on the palm of the hand. Because it is made of paper, the balloons are light enough for indoor play yet heavy enough that keeping it aloft is a challenge. It is reusable and also great for decoration. This product is sold as an individual item, contact us for quantity bundle options. Made in China.