Shred, white and blue $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". Shred, white and blue quantity Add to cart SKU: 969. Category: Sports. Related Products May You Always have Tailwinds $20.00 Each of Us Makes a Ripple $20.00 Across the Miles $20.00 No Guts, No Story $20.00