These microscope slides are made from super white glass with a permanent adhesive that attracts and chemically bonds fresh or frozen tissue samples to the slide surface. Slides are 25 x 75mm, 1.0-1.1mm thick, have 45° corners, ground edges and are pre-cleaned. Slides also have a white frosted area for labeling. Ideal for use in histology, cytology and pathology. 72 pieces per box.