This spheroid mixed pack contains six precision micro-molds; three 12-256 micro-molds for making small spheroids and three 12-81 micro-molds for making larger spheroids. Perfect for determining which size spheroid is right for your experiments. Embryoid bodies mimic early in vivo development. Multicellular tumor spheroids mimic the in vivo tumor environment. The 3D Petri Dishes® cast from these micro-molds fit into a standard 12 well tissue culture plate. (6 micro-molds per pack)