The Original 100% Silicone Tournament Chess Mat - 20 Inch Board, Black - by WE Games Roll-Up silicone tournament chessboard Made of 100% silicone - black & buff Includes algebraic notation in black Board measures 20 in. with 2.25 in. squares Silicone performance play board - Nonslip surface Did you know that playing board games can teach important social skills like verbal communication, being patient, sharing, taking turns and enjoying interactions with others? Games like Shut the Box foster the ability to focus and lengthens the player&#039;s attention span. Playing games is an easy and excellent way to spend unhurried, enjoyable time together. They are also rich in learning opportunities.<br> One study reported in the American Journal of Alzheimer&#039;s Disease and Other Dementias found that playing Bingo specifically provides Alzheimer patients with highly therapeutic mental stimulation. Patients who played the game did significantly better on measures of cognition, had increased alertness and awareness for hours after testing. Low tech board games like Shut the Box can be played alone or with friends or family and the benefits are significant.