LumiSource LED Glow Chess Set in Blue & White - SUP-LEDCHES-BW type: Battery Operated size dimensions: 15.7 L x 15.7 W x 1 H (board) height: Less than 12 style: Novelty weight: 13 lbs. description: This LED Chess set is truly unique. The chess pieces light up with no batteries when they are on or near the board! Chess board includes a power adapter or you can use 4 AA batteries (not included). features: LED