Specification Brand : Generic BulletPoint1 : Model Number : FHCW09.905. BulletPoint2 : Material : Optical Glass. Diameter Size : 19mm. BulletPoint3 : Division : 0.5mm x 0.5mm; Measuring Range : X/Y 0.5mm x 10 =5mm. BulletPoint4 : We also offer a comprehensive selection of accessories designed to enhance your microscopy experience. From objectives to slide preparation kits, we have everything you need to optimize your microscope performance. BulletPoint5 : We are committed to customer satisfaction! We strive to answer your questions promptly within 24 hours. Trust us to provide a reliable microscope or microscope accessory that meets your needs. Color : One Color ItemDisplayDimensions_Height : 0.08 inches ItemDisplayDimensions_Length : 3 inches ItemDisplayDimensions_Width : 0.71 inches ItemDisplayWeight : 1.17 pounds ItemName : Microscope C5 19mm Scale Microscope Calibration Ruler Slides ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : microscope-slides ItemVolume : 2.32 cubic_centimeters Manufacturer : Generic Material : glass ModelName : CATDTEEIE-C519MMDIAMETER ModelNumber : CATDTEEIE-C519MMDIAMETER NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : CATDTEEIE-C519MMDIAMETER ProductDescription : Our microscopes and accessories are made of durable materials to provide long-term reliable performance. Model Number : FHCW09.905