Kit includes 50 preps of 0.5 mm glass beads in 2 mL standard tubes. VK05 is designed for tough micro-organism lysing like yeast, fungi, cyanobacteria, phytoplankton, nematode, spores, micro-algae, and more. Sample size range from 20 mg to 200 mg sample or 200 µL to 1.6 mL culture. [Bertin Catalog P000913-LYSK0-A.0; Previously KT03961-1-004.2]