Includes 500 preps of 2.8 mm ceramic beads. These beads are designed for use with Precellys Tissue Homogenizers. Beads are designed for hard tissue homogenization like EAr, lung, heart, spleen, tail, cornea, artery, arabidopsis, leaves, and more. [Bertin Catalog P000926-LYSK0-A.0; Previously KT03961-1-102.BK]