Little revolutions $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". Little revolutions quantity Add to cart SKU: 942. Category: Sports. Related Products Yoga $20.00 No Guts, No Story $20.00 A sight for sore thighs $20.00 It’s More than the shoes $20.00