Includes 50 preps of 2.8 mm ceramic (zirconium oxide) beads in 2 ml reinforced tubes. Custom design reinforced tubes for bead beating application: O-ring and reinforced materials for dry grinding, valuable or very hard samples. F108CK28-R is designed for hard tissue homogenization like EAr, lung, heart, spleen, tail, cornea, artery, arabidopsis, leaves, tumor, intestine, adipose tissue and more. Sample size range: From 20 mg to 200 mg tissue or 200 µl to 1.6 ml culture. [Bertin Catalog P000916-LYSK0-A.0; Previously KT03961-1-007.2]