Make time to play $20.00 Inside Message Inside: especially on your birthday 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". Make time to play quantity Add to cart SKU: 827. Categories: Birthday, Women. Related Products I Snitch the Best $20.00 It’s your turn to wear the crown $20.00 My Heart Goes Out $20.00 Acute Pain $20.00