Cat. GG-22-1.5-Laminin: 22mm diameter, #1.5 thickness, 60 pieces of CE certified crystal clear German glass coverslips with mouse Laminin coating over PDL layer on both sides of coverslips for cell culture and confocal fluorescence microscopy, sealed 15 pieces per bag x 4 = 60, sterilized, ready to use. Similar items to consider: GG-25-1.5-laminin for its bigger culture area while fitting into 6 well plates the same as GG-22-1.5-laminin, GG-22-laminin for its lower price per package, or GG-18-laminin for its space-saving using 12 well plates.