The Thomas 2950WFC-602757 precleaned glass microscope slide measures 1 x 3" and has a 0.96 to 1.06 mm thickness. It has been washed, rinsed, and dried dust-free for immediate use, and packages are wrapped in plastic to seal out moisture. The case contains 10 boxes, each with 100 slides, for a total of 1, 000 slides. This glass microscope slide is suitable for use in a variety of microscopic examination applications. Thomas Scientific manufactures instruments, equipment, supplies, and chemicals for laboratory and scientific applications. The company, founded in 1900, is headquartered in Swedesboro, NJ.