Welcome to Bikini Bottom! For your son's next birthday party, celebrate it in style with this 15" Spongebob Squarepants Orbz Balloon with all his friends. Made from foil, this spherical balloon has 4 images printed around the balloon and should be inflated with a latex inflator and are intended to be over-inflated to get to their beach ball shaped. Each balloon is sold separately with a self-sealing valve and fill it with helium. A great addition to any party. The balloon measures 15" x 16". Multi-colored. 1 balloon per package.