Package & Size: You will receive 20 invitations with white envelopes. Invitations measure is 4 x 6 inches. Material: Made of high-quality cardboard, it is not easily bent during use and can be stored for a long time. Design: Utilizing high-quality printing technology, every detail of the invitation card is perfectly presented. The exquisite design ensures a comfortable user experience. Application: As a beautifully designed birthday invitation, this uniquely designed card will make your birthday party even more exciting and unforgettable.