Self-Healing Sisal Fibers - Compressed sisal fibers heal over time, ensuring your dart board is always ready for more, perfect for steel tip dartsCircular Spider Wire - Galvanized steel spider wire and staple-free bullseye helps to reduce bounce-outs and deflectionsRegulation Size - 17.75” diameter face so you’ll play on the same size dart board as the prosRotating Number Ring - Detachable number ring allows you to rotate the board, letting the sisal fibers heal and extending the dartboard’s lifeEasy Setup - Includes easy-to-use mounting hardware, two sets of darts, a throw line, and throw line measuring tape so you’ll be playing in no time