Dry hard tissue grinding CK68, 15mL - 6.8mm ceramic beads -152mL pre filled ; Lysing kit for Precellys - CK68 Dry Hard Tissue kit - 15mL tubes 25 prep. The CK68 matrix is composed of 6.8mmceramic (zirconium oxide) bead recommended for hard tissues such as muscle, bone, teeth, hair but also for plant roots, rods or seeds like corn, rice, wheat etc. It ensures optimal extraction yields of DNA/RNA/Protein for samples from 2g to 4g of tissue. The kits requires the use of the dedicated tube holder for Precellys Evolution (S000810-PEVO0-A.0).