Kit includes 50 preps of glass mix beads of 0.1 mm and 0.5 mm in 7 ml standard tubes with O-ring. VKMix 7 ml is designed for micro-organism lysing like yeast fungi, gram+, gram- bacteria, spores, micro-algae and more. Sample size range from 200 mg to 2 g sample or 200 µl to 6 ml culture. [Bertin Catalog P000937-LYSK0-A.0; Previously KT03961-1-304.7]