Our 18" Yes! I'm A Boy Mylar Balloon is the perfect addition to any baby shower or gender reveal party. The balloon is made of high-quality mylar material that is both durable and long-lasting. The vibrant blue color and bold "Yes! I'm A Boy" message make this balloon a fun and eye-catching decoration. It can be filled with either helium or air and will stay inflated for weeks. Surprise your guests and celebrate the new addition to your family with this adorable balloon.