18g/cc Tungsten ball, tungsten beads, without hole, solid beads, Density as high as 18g/cc, about 1.7 times of LeadNon-toxic, ... within +/-0.05Fully polished size: 2.75mm, 3.25mm....The density is almost highest in the world at an acceptable price ... our quality is highest.More sizes are available on request. high density tungsten ball, tungsten beads, clump weight ball