Dynarex Microscope Slides Frosted (4171). Corner grounded - 3" x 1" x 1mm. Corrosion resistant, precleaned, lint-free and ready to use. Suitable for all medical applications. Made of premium, quality sheet glass with ground corners and provides consistent results for all laboratory tests. Frosted slide coating retains most laboratory marking methods. Writing surface eliminates the need for paper labels and relabeling of slides. 72/BX. Priced per box. FREE Shipping!