DIMENSION: Our birthday invitation card measures 4"x 6" (W x L). Fill-in style. QUANTITY: The pack includes 20 birthday invitation cards with corresponding envelopes. MATERIAL: The invitation cards are made of coated paper that is high-quality and sturdy. In addition, you can write on the paper easily and you don't have to worry about ink penetration. Workmanship: With beautiful design and bright colors, the invitation cards will attract the attention of your guests. A perfect choice for inviting your family and friends to a birthday party. DIMENSION: Our birthday invitation card measures 4"x 6" (W x L). Fill-in style. QUANTITY: The pack includes 20 birthday invitation cards with corresponding envelopes. MATERIAL: The invitation cards are made of coated paper that is high-quality and sturdy. In addition, you can write on the paper easily and you don't have to worry about ink penetration. Workmanship: With beautiful design and bright colors, the invitation cards will attract the attention of your guests. A perfect choice for inviting your family and friends to a birthday party.