This small cardboard mystery box is perfect for revealing whether your little one will arrive in pink or blue. Covered in question marks that signal there's a secret inside, fill the box with a pink or blue balloon and a 'girl' or 'boy' sign. When you lift the lid, your guests will cheer as the balloons float up, revealing the answer they've been waiting to hear. Ideal for indoor gender-reveal gatherings, this small box keeps the big reveal fun, light, and simple.