Sealed With My Smile $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". Sealed With My Smile quantity Add to cart SKU: 582. Categories: Friendship & Support, Hearts. Related Products In Deep $20.00 I Only Have Irises for You $20.00 You are the Rock in My River $20.00 We Grow Together $20.00