Everything is Within Reach $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". Quantity Add to cart SKU: 191. Categories: Friendship & Support, Pets, Sympathy - Healing. Related Products Buy Now Pray Later $20.00 Share an Umbrella $20.00 May You Always have Tailwinds $20.00 Friends are the Fiber $20.00