The interior of this Avanti Press birthday card design reads: Happy Sunnny, Funny Birthday! The card measures 6.7x4.75 inches and is printed on heavy lenticular cardstock. Includes 1 card and 1 envelope. The card has the following special features: lenticular, motion, full color interior. From the APlus Motion line of cards. This 3D motion card uses lenticular printing technology to produce images with an illusion of depth and motion when viewed from different angles. Printed in the USA.