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 Buy Now Pray Later $20.00 Light a Candle $20.00 Hi $20.00 Each of Us Makes a Ripple $20.00