ITEM NAME:23.2mm Biological Microscope WF10X Wide Field Angle Eyepiece, Pack of 1 (Black) Description: WF10X 18mm widefield eyepiece. 10x magnification eyepiece lens. 18mm wide field of view. 23.2mm Interface suitable for Biological Microscopes. It is Achromatic (International DIN/JIS) standard size with outside diameter of approx 23.2 mm. Specification: Feature:Wide Angle Material: Optical Glass + Metal Magnification: 10X Field of View: 18mm Mount: 23.2mm, Suit for Biological Microscope Package Includes: 1 Piece WF10X Widefield Eyepiece SKU: CKX0012850877008724.WF10X 18mm widefield eyepiece. 1 Piece WF10X Widefield Eyepiece. 10x magnification eyepiece lens. Mount: 23.2mm, Suit for Biological Microscope. 23.2mm Interface suitable for Biological Microscopes.