The wide eyepiece has a wide field of view, which not only improves the softness of viewing, but also makes the image clearer and brighter. The all-metal material makes the eyepieces more durable.The installation size is 23.2mm, which is suitable for most biological microscopes on the market.Product Type: Biological microscope eyepieceSpecification: WF25Xcolour: blackMaterial: metalSize: Eyepiece diameter 23.2mmPackage Contents:1 x Biological microscope eyepieceOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store