Biologix 5 mL and 15 mL Tubes with Zirconia Beads by Biologix are homogenizer tubes pre-filled with zirconia beads for disrupting larger samples. Versions are matched to animal tissue, plant tissue, microbes, microbial RNA and animal and plant RNA. Tubes are packed 25 per bag in packs of 25 or 50, ready for sample disruption before nucleic acid or protein extraction.