Sweet Thanks $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". Sweet Thanks quantity Add to cart SKU: 1081. Categories: Baby - Parenting, Thank You. Related Products Just a Little Mistake $20.00 Whine Bottles $20.00 Thanks for your footsteps $20.00 Thanks for Your Strength $20.00