Pining For You $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". Pining For You quantity Add to cart SKU: 1230. Categories: Christmas - Holiday, Hearts. Related Products The Plot Thickens $20.00 I Love You from the Bottom of My Heart $20.00 The Beet Grows On $20.00 My Heart Goes Out $20.00