Description: 1. Material: Using high-precision aluminum alloy material, fine workmanship, good impact force, earthquake resistance and durability. 2. Objective lens: see far, bright colors, more comfortable to watch. 3. Eyepiece: high color display and high light transmittance. 4. Features: By accurately positioning the target, easily adjust the front focus, distance and magnification. Specification: Name: Optical Scope Colour: Black Illumination color: red/green Waterproof: life waterproof Magnification: 3 times Target diameter: 28mm Applicable rail: 11mm / 22mm rail Size: 12*3.5*3.5cm weight:350g Package List: 1*Scope 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.