Powder Day $15.00 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". Quantity Add to cart SKU: 1212. Categories: Christmas - Holiday, Cycling, Skiing. Tags: bike cards, bike christmas cards, bike greeting cards, bike holiday cards, cycling, cycling cards, cycling christmas cards, cycling greeting cards, cycling holiday cards, ski, ski cards, ski christmas cards, ski greeting cards, skiing, skiing cards, skiing christmas cards, skiing greeting cards, sports, sports cards, sports christmas cards, sports greeting cardsbike. Related Products Going Downhill Without You $15.00 A Little Peace of Christmas $15.00 Vitamin XC $15.00 May Peace Surround You $15.00