Unicorn Coliseum Wall Center 'Tournament Play Approved' Official Size Bristle Dartboard with Overhead LED Lighting 1179938 Official Size: 18" x 1.5" Self-Healing Bristle Dartboard. Approved for Tournament Play. LED lighting above board for improved visibility. Self-healing natural sisal Playfield. When removed, dart holes disappear due to the pressure of the tightly wound sisal fibers. Steel spider-wire with staple-free bullseye: Reduces bounce-outs. Moveable number ring increases the life of the board. Includes (6) Steel tip darts with poly shafts and poly flights, 2 pieces of chalk, 1 eraser and hanging brackets and hardware.