description: 1. Material: High quality rubber material is used, which is light and durable, making it easier for you to focus on aiming. The rubber material can prevent hard recoil from hurting the eyes. 2. Function: Used in conjunction with optical elements, it can relieve eye fatigue by blocking glare or enhancing weak light, and improve attention to the target by eliminating the interference of surrounding movement. 3. Suitable for: monoculars, night vision devices, sights and other optical components. specification: Name: Night vision scope rubber eye mask Colour: Black size: Type A: 60*40*35mm (as shown in the picture) Type B: 93*33*28mm (as shown in the picture) Type C: 98*38*34mm (as shown in the picture) Net weight: 26g/28g/35g List: 1*rubber cover Tips: 1. Due to manual measurement, please accept an error of 1-3 cm. 2. Due to the difference of light and screen, the color of the product may be slightly different from the picture.