This spider-shaped balloon is made of aluminum film material. Designed just for Halloween! This is a fantastic toy for kids and adults. It can be filled with helium or hydrogen. Self-sealing after filling. These balloons are very pretty. Besides Halloween, they're great for trick parties, birthday parties, promotions, and more. They can also be an eye-catching and affordable eye-catcher for retail stores and businesses. We can also print your logo or other content on the balloons for greater exposure.