The Benchmark Scientific D1034-30 Prefilled 5ml tubes contain an appropriate amount of 3.0mm diameter Zirconium beads for use in most bead homogenizers. The tubes are ready to use and the beads are acid washed and heat treated to remove contaminants and render them nuclease and protease free. The D1034-30 tubes are suitable for homogenization of a variety of tissues including heart, lung, and brain, plant tissues, insects and dried samples. These are supplied in a pack of 50 tubes and are suitable for use in the BeadBug 6 and BeadBlaster 24 with appropriate 5ml tube holders.