Cold Hand, Warm Heart $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". Cold Hand, Warm Heart quantity Add to cart SKU: 1203. Categories: Christmas - Holiday, Humor, Sports. Related Products This Too Shall Pass $20.00 I Snitch the Best $20.00 When You’re Over the Hill $20.00 Light a Candle $20.00