1. 20x20mm larger objective for brighter images; 2. Telescopic and adjustable lens; 3. Metal body for ; 4. 5X magnification for better visual ; 5. 43-70cm adjustable length, easy to carry and use. Item: 5x20 Periscope Monocular Magnification: 5X Objective Diameter: 20x20mm FOV: 8.5 Degree Diopter Adjustment: +/- 5 Weight: 400g Eye Cup: Fold-down Rubber Eye Cover Colour:Black Material:Metal Warning: Do not use this product to directly observe the strong light source such as the sun, otherwise it cause permanent damage to your eyes. Package Contents: 1 * Monocular Telescope Only the above package content, other products are not included. Note: Light reflection 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.