Nodor – the First and Still the Finest. The Nodor SupaBull bristle dartboard, endorsed by the American Dart Organization, is a regulation-sized bristle dartboard with a staple-free SupaBull bullseye for maximized scoring. Dense sisal fibers create a self-healing playing surface. The moveable number ring ensures the dartboard will wear evenly, prolonging the playing life. Includes hanging kit.Specification:Measures 17.75 inches in diameter and 1.5 inches thick.Equipped with EASY-TURN steel numbers; ideal for beginners or recreational players.Extends the life of the board; Round Mobile Number Ring, Stapled Metal Spider.Sisal fiber construction.Staple-free bulls-eye for the highest score; automatic.Target Sow Level Approved by the American Darts Organization.