Make A Splash - Pool Party Fill-In the Blank Invitation Set INCLUDES 8 kids summer invitations and premium white envelopes. Waterpark fill-in invitations are perfect for a birthday party. Make A Splash - Pool party invitations SIZE 5.5 inches by 3.75 inches, folded. The included envelopes measure 5.75 inches by 3.75 inches. The inside of each Make A Splash - Pool Party or birthday party invitation has space to add your party details: For: Date: Time: Place: Given By: RSVP: PREMIUM PARTY INVITATIONS: Make A Splash - Pool Party or birthday party invitations are professionally printed on heavy-duty card stock paper with a photo-like shine. They are then hand-folded and individually inspected, then carefully packaged with our exclusive squiggle flap envelopes, making this flamingo pool party stationary set a must-have for any birthday party. MADE IN THE USA: Make A Splash - Pool Party Fill-In Birthday Party Invitations are designed and manufactured at our Wisconsin facility using materials that are Made in the USA.