Powder Day $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". Powder Day 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 Oh What Fun It Is to Ride $20.00 Go to the Forest $20.00 Snowflakes Pinecones $20.00 Vitamin XC $20.00