Cat. GG-24-Laminin: 24mm diameter, #1 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, sealed 15 pieces per bag x 4 = 60, sterilized, ready to use. Also, you might want to compare this coverslips to others, such as GG-25-laminin, GG-25-1.5-laminin, or GG-22-laminin. All of these coverslips are equally coated with laminin on PDL layers to provide robust long term culture of your challenged primary cells.