-Fully equipped, not only the beautiful pop up card and envelop, but a cute envelope sticker, which can be use to paste envelopes or to decorate your handwritten content. -This card and envelope are made of special paper with pearlescent, so the card will shine slightly in the presence of light. -Personalized birthday cards, whether as a birthday gift alone or accompanied by flowers or other gifts to birthday people, he will feel your care. Specification: Card weight:45g/0.1lb Card volume:5.9" x 5.9" x0.02" Card material:Specialty paper Packing include: 1*music pop-up card 1*envelope 1*lovely envelope sticker（randomly） 1*opp bag INSTRUCTIONS △Please gently remove the white plastic insulating sheet on the right before use. △Press the black button left of the cake to turn on the music.