Two lines are drawn on the table along the diagonals. In each corner is a circular hole that can be 51mm in diameter and underneath each hole is a net to catch the pieces in a similar way to a snooker table. A Karom board is a square smooth flat wooden board that can be 72cm or 74cm square and which should be positioned 60 - 70cm above the ground. The following dimensions vary considerably and are given only as an example of a tournament board.