Microscope Slides Ground Edges, 25.4X76.2(1"X3"), 50pcs or 72pcs/box, 50boxes/ctn Unground Edges, packing as above Single Concave, Ground Edges, packing as above Double Concave, Ground Edges, packing as above Frosted One End On One Side, Ground Edges, packing as above Frosted Both End On One Side, Ground Edges, packing as above Frosted One End On Both Side, Ground Edges, packing as above Frosted Both Ends On Both Side, packing as above Clour Frosted, Ground Edges, packing as above Frosted On One Side, packing as above Cover Glass Thick 0.13-0.17, 18x18 Thick 0.13-0.17, 20x20 Thick 0.13-0.17, 22x22 Thick 0.13-0.17, 24x24 Thick 0.13-0.17, 24x32 Thick 0.13-0.17, 24x40 Thick 0.13-0.17, 24x50 Packing: 100pcs/box, 500boxes/ctn Or 200pcs/box (with gemel cover), 200boxes/carton.