When working under the microscope, this rubber goggle protects the eyes from outside light, prevents dizziness, and sees objects more clearly Features 1. Made of soft rubber that doesn't hurt your stereo microscope. 2. Eyepiece cover is designed to reduce impact, and better protect your eyes. 3. Help create the perfect distance between the eye and the reach. 4. The inner diameter is 36mm, suitable for 32-36mm stereo microscope. 5. An essential microscope accessory to protect your stereo microscope and also your eyes. Specification Item Type: Eyepiece Cover Material: Rubber Optional Type: Oblique Angle, Flat Angle Inner Diameter: Approx. 36mm / 1.4in Package List: 1 Pair X Eyepiece Cover Characteristics Main function The eyepiece cover is mainly installed in front of the front end of the lens observation, which can effectively protect the distance between the lens and the eyepiece Good elasticity The eyepiece cover is made of rubber, which is elastic 32cm-36cm interface Our eyepiece guard is mainly suitable for the interface of microscope eyepiece 32cm-36cm