Includes 20 Dinosaur Invitations and 20 White Envelopes. Standard 4 x 6 Inch Flat Postcard Style Invites on Sturdy Cardstock. The design is two sided. One side reads "Rooaaarrrrr. Youre Invited to a Dino-Mite Party." The other side has the fill in the blank details (For, Date, Time, Place, RSVP). Cute Dinosaur Birthday Party Invitations with fun prehistoric design featuring a T-Rex that looks like its going to eat you. The bottom of the invite is bordered by silhouettes of dinos Tyrannosaurus, Brontosaurus, and Stegosaurus. These fill in the blank invites are great for kids birthday parties and other types of dinosaur themed events. Your little paleontologist will love these announcements.