Precellys Tissue Grinding Kit includes 25 preps of 5.0 mm ceramic beads (CK50) in 15 ml tubes. CK50 beads are designed for grinding whole organs like rat brain, liver, kidney, skin, whole iris-ciliary body pork and dry samples as pepper grains and more.Sample size range: from 400 mg to 4 g tissue or 400 µl to 9 ml culture. [Bertin Catalog P000949-LYSK0-A.0; Previously KT03961-1-513.15]