Air hockey
Air hockey is a tabletop sport where two opposing players try to score goals against each other on a low-friction table using two hand-held discs (mallets/pushers) and a lightweight plastic puck. The air hockey table has raised edges that allow the puck to reflect off horizontally, and a very smooth, slippery surface that further reduces friction by suspending the puck on a thin cushion of air ejected from tiny vent holes built inside the surface.