Specification Brand : Generic BulletPoint1 : Connection thread: International standard interface "4/5 inch * 1/36 inch", diameter about 20.3 * 0.705MM. BulletPoint2 : 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. BulletPoint3 : 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 ItemName : Microscope Biological Microscopes Lens, 4X 10X 20X 40X 60X 100X(Oil)(20X(Black)) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : microscope-lenses Manufacturer : Generic ModelName : ZCEEFTCA-20X(BLACK) ModelNumber : ZCEEFTCA-20X(BLACK) NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : ZCEEFTCA-20X(BLACK) ProductDescription : Our microscopes and accessories are made of durable materials to provide long-term reliable performance.