Precellys Hard Tissue Homogenizing Kit includes 25 preps of 2.8 mm ceramic beads (CK28) in 15 ml tubes. CK28 beads are designed for hard tissue homogenization like EAr, lung, heart, spleen, tail, artery, arabidopsis, leaves, and more. Sample size range from 400 mg to 4 g tissue or 400 µl to 9 ml culture. [Bertin Catalog P000947-LYSK0-A.0; Previously KT03961-1-502.15]