Tree by ski $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". Tree by ski quantity Add to cart SKU: tree-by-ski. Categories: Christmas - Holiday, Skiing. Tags: art card, art greeting card, christmas cards, christmas tree greeting card, holiday cards, ski cards, ski greeting card, sports cards, unique cards, unique greeting cards, winter cards. Related Products A Little Peace of Christmas $20.00 Everything’s Gonna Be All White $20.00 Vitamin XC $20.00 May Peace Surround You $20.00