Microscope Slides, Glass, 25 x 75mm, 45? Beveled Edges, Clipped Corners, Frosted, 1 End, Both Sides, 72/Box, 20 Boxes/Case (10 Gross) Globe's frosted microscope slides are produced using a unique chemical etching process. This provides our slides with a smooth frosted finish that won't wear out slide marking pens. Slides are printed with "Globe" under the frosting area for orientation purposes. Finding the perfect slide to suit your needs is easy: choose from single sided or double sided frosted, and ground or beveled edges. We also offer our ground-edge slides with the following options: 90? corners (straight-edge) or safety corners.