This 17" Shark Happy Birthday Foil Balloon from Anagram International, Inc. is the perfect way to add some fun to your birthday celebration! This colorful balloon features a fun shark design and the phrase "Happy Birthday" written in bright colors. It's perfect for kids and adults alike and is sure to bring a smile to everyone's face. The balloon is made of foil material, making it strong and durable, and can be filled with air or helium. It's sure to be a hit at any birthday party!