Sing Me a Song $20.00 Inside Message Inside: you are a gift 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". Sing Me a Song quantity Add to cart SKU: 543. Categories: Friendship & Support, Music, Women. Related Products Friends are the Fiber $20.00 Friends Keep you Growing $20.00 Friendship is Continuous $20.00 Room With a View $20.00