The term 'ping-pong surface' refers to the playing surface of a ping-pong TABLE. The two crossword solutions for this term are 'TABLE' (5 letters) and 'tabletop' (8 letters). A ping-pong TABLE is typically composed of a flat, rectangular tabletop with a net stretched across the middle. The TABLE is usually made of wood or a synthetic material, and the tabletop is usually covered with a layer of paint or plastic to provide a smooth, even surface for the game.