30Pcs Birthday Invitation Cards Set: Each party invite card comes with a self-adhesive envelope, which is ready for sending to your party guests. Practical Size: The fill-in party invitation measures 4" X 6". It is suitable for easy mailing. There is enough space for you to write on all the details. Great for a fun birthday party or graduation celebration. Premium Quality: Made from thick cardstock, these birthday party invites are sturdy to carry and can be easy to write on using any type of pen. Impressive & Cute Design: With a double-sided design and exquisite printing of warm pink and rainbow colors, the invitation card will sure bring a smile to whoever receives it. Celebrating Birthday: The product Includes 30 single party invitations and 30 white envelopes. Suitable for event planning and celebrating birthday parties for family, girls, boys and friends The cards are of high quality printing with clear details and vibrant colors. Envelopes are included.