Triumph Sports HyMark Adv Level Bristl Dartbd Brand: Triumph Sports Features: Triumph Sports USA: Hy Mark Advanced Level Bristle Dartboard. Features: Target size: 18x 1.5--Round wire design--Rotatable number ring for even board wear--Matte silver number ring reduces any glare--Staple-free bull?s-eye--Material: high density self-healing sisal fibers--Includes 1 set of steel tip darts