This heavy duty birthday invitation is perfect for your little one's birthday party. It includes a FREE thank you card printable. Digital files will be emailed within 24 business hours for you to print at home, through an online vendor, or a local print store. Printed Invitations (U.S. Only) are printed as a 5x7 on the highest quality premium card stock, include a coordinating back side design, and includes white envelopes. Once purchased, a proof will be emailed to you within 24 business hours. Once approved, please allow 3-5 business days to receive your order.