Diaguru bead tubes are made of high-quality 2.8mm ceramic, 3mm glass, 2.8mm stainless steel beads with reinforced wall 2ml microtube with screw cap. These tubes are often called lysing kit. These tubes are designed for grinding the tissues samples Application are but not limited to bacteria, fungi, spores, molds algae, yeasts, adipose, liver, heart, lung, tumor, small insects, seeds, hair etc Other bead sizes and other tube seizes are available on request. Bead sizes Glass: 1-10mm Steel 2.8mm and 5mm Zirconium: 0.1mm, 0.5mm, 1mm, 1.5mm, 2.8mm, 6mm Tube sizes 2, 10, 15ml Products are made for different Homogenizer in the market including Beadblaster, Beadbug, Beadbeater, bead mill, bead rupt, irupt, fastprep, etc. All these brands are trademark or their respective manufacturers.