Run Home $20.00 Inside Message Inside:We Miss You 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". Run Home quantity Add to cart SKU: 555. Categories: Hearts, Sports. Related Products Squeeze the Day $20.00 Art is Therapy $20.00 I Only Have Irises for You $20.00 We Grow Together $20.00