Cosmic Mailbox Birthday Holographic Foil Greeting Card: 4.25" x 5.5" (fits a A2 Envelope)

Celebrate birthdays with a cosmic twist! This playful die-cut mailbox card opens to reveal a floating birthday cake in space, accented by shimmering holographic foil. Printed on premium white linen textured 100lb cardstock, it measures 4.25" x 5.5" (A2) and includes a matching mint envelope with a Euro flap. Blank inside, it’s perfect for your personal message to send birthday wishes that are truly out of this world.