These cards are handmade in South Africa and have seeds implanted as the recycled paper is made in to new cards. The recipient can plant the card and grow alyssum and snapdragon. Size: 3.75” x 5.5,” blank inside. Each card/envelope comes in plastic with a sticker showing the name of the artisan who created the card. The paper is made of 100% post-consumer waste paper which is sourced from a shredding company as well as a nearby school. Only water is added to the waste paper to create the new paper. No chemicals are added during the papermaking process.