Some birthdays call for cake. Tennis birthdays call for a slice served up courtside. This "Birthday Slice" card features a candlelit slice of layered cake plated on a vintage wooden tennis racquet, because the sweetest wins happen on and off the court. 
 
Blank inside, it's ready for your own birthday note, and the watercolor style makes it just as at home framed on a gift table as it is in the mail. At 4.25" x 5.5", it fits a standard A2 envelope — pick it up for your favorite doubles partner, your club's resident racquet-twirler, or anyone who'd rather celebrate with a serve than a candle-blow.