Merry Christmas $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". Merry Christmas quantity Add to cart SKU: 990. Categories: Christmas - Holiday, Cycling, Sports. Tags: bike, bike cards, bike christmas cards, bike greeting cards, bike holiday cards, christmas cards, christmas greetings, cycling, cycling cards, cycling christmas cards, cycling greeting cards, cycling holiday cards, holida cards, holiday greetings, sports, sports cards, sports greeting cards, sports holiday cards. Related Products Fat, Tired and Merry $20.00 Going Downhill Without You $20.00 Not a Creature was Stirring $20.00 Vitamin XC $20.00