Thinking of you $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". Thinking of you quantity Add to cart SKU: 1119. Categories: Friendship & Support, Hearts. Related Products Bless Your Heart $20.00 Thanks for Your Strength $20.00 You Are So Good to Me $20.00 With Every Move $20.00