ITEM NAME:1PC WF-20X 10mm Widefield High-view Eyepiece for Biological Microscopes 30mm Description: WF20X 10mm widefield eyepiece. 20X magnification eyepiece lens. 10mm wide field of view. 30mm Interface suitable for Biological Microscopes. It is Achromatic (International DIN/JIS) standard size with outside diameter of approx 30 mm. Specification: Feature:Wide Angle Material: Metal Magnification: 20X Field of View: 10mm Mount: 30mm, Suit for Biological Microscope Package Includes: 1 Piece WF20X Widefield Eyepiece SKU: ALU0021817177008741.WF20X 10mm widefield eyepiece. 1 Piece WF20X Widefield Eyepiece. 30mm Interface suitable for Biological Microscopes. 20X magnification eyepiece lens. Mount: 30mm, Suit for Biological Microscope. Magnification: 20X.