Motorized Micro Homogenizer with speed up to\u00e9 13000 rpm. Used to prevent sample accumulation or soft tissue deregulation inside the microtubes for centrifugation. Tissue maceration and cell breakage with minimal damage to the plasma membrane. Grinder size: For 1.5/2.0mL microtubes. Power supply: AA 1.5v x 2 battery or batteries.