This product is a set of 20 Sandra Boynton 1980 Flying Pigs Party Invitation Cards with envelopes. The cards feature a Pink Pig design with  playful party animals wearing Birthday Hats, perfect for a party occasion. Each card is a folded type and includes an envelope for easy gifting. Made by Recycled Paper Products in the United States, these vintage cards add a touch of nostalgia to any invitation. Personalization is not available, but the charming design speaks for itself.