Boulder and Wiser $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". Boulder and Wiser quantity Add to cart SKU: 1075. Categories: Cycling, Sports. Tags: bike, bike cards, bike christmas cards, bike greeting cards, bike holiday cards, cycling, cycling cards, cycling christmas cards, cycling greeting cards, cycling holiday cards, sports, sports cards, sports greeting cards, sports holiday cards. Related Products Baby with bike trailer $20.00 Oh What Fun It Is to Ride $20.00 Read Between the Pines $20.00 Father, sun and holy bicycle $20.00