Give Peas a Chance $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". Give Peas a Chance quantity Add to cart SKU: 104. Categories: Baby - Parenting, Gardening, Humor. Related Products I Only Have Irises for You $20.00 Sweet Thanks $20.00 Acute Pain $20.00 Baby with bike trailer $20.00