Each impact resistant 1.1 ml tube contains 0.5 ml dry volume and the option of 0.5 mm, 2 mm, or 0.5 mm & 0.1 mm ZR BashingBead Lysis Matrix. Tubes are in a 96-well rack with caps and a cover for high throughput processing. The state of the art, ultra-high density beads are fracture resistant, chemically inert, and ideal for disrupting tough-to-lyse biological samples. These beads are ideal for microbes and fungi in soil, feces, sludge, etc.