Talk About It $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". Talk About It quantity Add to cart SKU: 745. Categories: Friendship & Support, Gardening, Sympathy - Healing. Related Products just add flour $20.00 The Season to Remember Your Roots $20.00 If Fences Were Flowers $20.00 Plant seeds of kindness every day $20.00