Features:Features a staple-free bullseye which helps prevent bounce-outs; A movable number ring further extends the dartboard’s lifeUtilizes thin, rounded galvanized wires that allow darts to slide off the spider and land in the target areaRemovable number ring allows you to rotate the dartboard, allowing the fibers to healproviding unsurpassed durabilitySpecifications:Overall size: 17.7″ * 17.7″ * 1.5″ grade B sisal material digital circle can be rotated and disassembled