The Blade Champions Choice Dual Core dartboard is the ultimate professional level training dartboard. The doubles, trebles, 25 and bull's-eye are all 50% thinner than on a standard Blade 4, and each scoring segment features high visibility colors to facilitate accuracy. This dartboard includes fourth generation Blade wiring, and the Dual Core technology achieves lower compression at the outer core which reduces surface resistance and increases point penetration for fewer lost darts and higher scores. Higher compression at the inner core increases resistance below the surface, absorbing excess kinetic energy for improved durability. The pure sisal outer core has an uncompromised playing surface for perfect vision, increased scoring potential and easier alignment.