Viper Shot King Sisal/Bristle Dartboard with Staple-Free Bullseye Bundle (Backboard Surround, Darts and Throw Line) Constructed from self-healing sisal bristle fibers compressed together, providing unsurpassed durability Features a staple-free bullseye which helps prevent bounce-outs; A movable number ring further extends the dartboard's life Viper Shot King is an official tournament size board, measuring 18" in diameter and 1.5" D; Dartboard accommodates both steel tip and soft tip darts Utilizes thin, rounded galvanized wires that allow darts to slide off the spider and land in the target area Includes a dartboard backboard surround, throw line adhesive marker, 2 complete sets of steel tip darts (6 total) and mounting hardware