Specification Brand : Generic BulletPoint1 : It has a standard male M42mmx1mm male thread to connect to your 42mm adapter. BulletPoint2 : It has a female 36 TPI (thread per inch) thread at one end, which will hold any microscope objective with a standard RMS thread. BulletPoint3 : 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. BulletPoint4 : 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 : M42X0.75-4x Lens A ExternallyAssignedProductIdentifier : 9586912748885 ItemName : Microscope Inside Thread RMS (20mm) Lens Adapter for RMS Microscopio Lens to M42 Mount(M42X0.75-4x Lens A) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : microscope-lens-adapters Manufacturer : Generic ModelName : CECFTBAFV-M42X0.75-4XLENSA-1PCS ModelNumber : CECFTBAFV-M42X0.75-4XLENSA-1PCS NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : CECFTBAFV-M42X0.75-4XLENSA-1PCS ProductDescription : Our microscopes and accessories are made of durable materials to provide long-term reliable performance. Magnification Ratio: 500X & Under