Prefilled 5ml tubes contain an appropriate amount of 2.8mm diameter stainless steel beads for use in bead homogenizers. Tubes are ready to use – beads are alcohol washed and heat treated to remove contaminants and render them nuclease and protease free. Suitable for homogenization of tough, hard samples, muscle, plant materials, seeds and dried samples. Supplied in packs of 50 tubes. Tubes are suitable for use in the BeadBug 6 and BeadBlaster 24 with appropriate 5ml tube holders. Beads also available in loose bulk (D1133-28).