Caw Caw Cawfee $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". Caw Caw Cawfee quantity Add to cart SKU: 10103. Categories: Food, Friendship & Support, Humor, Pets. Related Products Memories, Blue Jeans, Bicycle Seats and You $20.00 Share an Umbrella $20.00 The World is at Your Feet $20.00 Light a Candle $20.00