A New Pea $20.00 Inside Message Blank Inside Packages of Heartstrings® cards are shrink-wrapped and sold in sets of 10 cards with envelopes. The actual card size is 4 1/4" x 5 1/2". A New Pea quantity Add to cart SKU: 23. Categories: Baby - Parenting, Gardening. Related Products The Beet Grows On $20.00 Speak Love, Sing Faith $20.00 Paws in the Flowers $20.00 High Hopes $20.00