The Chess Rules Teaching Companion is the ideal teaching tool for the beginner. This is a vinyl board designed to lay in front of a standard size chess board to show at a glance how the pieces move and the other basic rules of the game. This is the perfect aid for the teacher or coach and whether the beginner is five years old or fifty years old. The mat measures 20" x 11" and is made of a durable vinyl that can be easily cleaned.