L21A 50Pcs 1mm Thickness Cavity Glass Coverslips Single Concave Microscope Glass Slides Reusable Laboratory Blank Sample CoverOOTDTY  Description:Features: brand new and high quality. Made of high quality glasses. Used to make specimens for microscope. The Slides are Rectangular and good light transmission ,their edge are grinded carefully to protect your fingers.Specifications: Product: Microscope Slides. Material: Glass. Color: Transparent. Size: approx 25x76x1mm/0.98x0.04x2.99". Quantity: 50pcs.Note: Transition: 1cm=10mm=0.39inch. Please allow 0-5mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! If you really care about these details, pls DO NOT order.Package includes: 50 x Microscope Slides. No retail package