Precleaned microscope slides are coated with Gelatin from Porcine Skin and enhanced by exposing the slides to formaldehyde vapour and making gelatin insoluble. Formaldehyde may also form some covalent linkages between suitably placed nitrogen atoms in gelatin molecules and tissue proteins.Each slide (hight clarity, low fluorescence white glass. size: 75x25 mm, thickness: 1.0 mm) has a frosted end. The slides are packaged in a slide box and sealed in an air-tight plastic bag to ensure dryness during shipment and storage.100 Slides / Box