Take birthday wishes to new heights with this playful 3D pop-up card featuring a red biplane soaring through a sky filled with balloons and fluffy clouds. The front cover sets the scene with a bright blue sky, hot air balloons, and multicolored HAPPY BIRTHDAY text. Inside, the pop-up airplane flies above the clouds with the birthday message floating in the background, creating a joyful and adventurous atmosphere. Measuring 15 x 20 cm, the card includes a cream-colored envelope (16 x 21 cm) and a blank insert (8.5 x 13 cm) for your personal message. Whether for kids, travel lovers, or anyone who dreams big, this card delivers a burst of excitement. Its detailed paper engineering and uplifting design make it a keepsake worth displaying. Perfect for birthdays filled with imagination, movement, and sky-high joy.