just breathe $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". just breathe quantity Add to cart SKU: 10057. Categories: Food, Humor, Sympathy - Healing. Related Products We All Seek Higher Peace $20.00 Room With a View $20.00 When You’re Over the Hill $20.00 Fire Up the Choir $20.00