The piece set is designed to reflect postage stamps in a few ways. The outer edge of each piece has ridges that mimic stamp perforations, which has the added benefit of providing extra grip to the player. A large number on each piece mimics a stamp's cent value and additionally indicates the relative piece value of the pawn, bishop, knight, rook, or queen. As the king has no relative piece value, I have instead designed it to have my father's initials, as it was a gift after all. Lastly, the size of each piece is similar to that of an actual postage stamp, which coincidentally is a good size for a chess set.