Slides packaged in 50 pieces All microscope slides pre-cleaned and ready to use grounds edges and corners Soda lime glass with Si02:72-74% Al203:1-1,9%, Fe203:0.09-0.1% Size: 74-75 x 22-25mm thickness 1.0-1.2mm according to ISO 8037/1 cleaned and degreased cellophanized (tropical packing, paper in between) same size of the slide Manufactured under CE certification or equivalent Packaging: Every pack may have a desiccant Show More