Independence $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". Independence quantity Add to cart SKU: 1138. Categories: Humor, Misc Occasions. Related Products Buy Now Pray Later $20.00 When You’re Over the Hill $20.00 All I Can Hear is My Heart $20.00 It’s More than the shoes $20.00