Listen to your heart $20.00 Inside Message Message Inside:It whispers the truth 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". Listen to your heart quantity Add to cart SKU: 1161. Categories: Friendship & Support, Hearts, Pets. Related Products We Grow Together $20.00 Squeeze the Day $20.00 The Beet Grows On $20.00 In Deep $20.00