Mouse Bone Marrow Mesenchymal Stem Cells (Plated cells are also available). 120 Population doublings or up to 12 passages. One million viable cells upon thawing of frozen cells, frozen vial of cells shipped in dry-ice. Cells are only guaranteed with purchase of Creative Bioarray Media and Creative Bioarray Extra Cellular Matrix for appropriate cell culture, for 30 days from the date of shipment. Product Link:http://www.creative-bioarray.com/QualiCell-reg-Mouse-Bone-Marrow-Mesenchymal-Stem-Cell-XLC426-CSC-C00367-item-2923.htm