Compact 8x20 Monocular Telescope - Portable High-Definition Scope 8x20 High Power Monocular - Featuring 8X magnification and 20mm object lens diameter, this handheld monocular can help you see distant target clearly. Multi-layer Coated Optics Lens - With fully multi-coated optical lens and BAK4 prisms, the monocular guarantees superior light transmission and brightness, ensuring the image you view as bright and sharp as possible. Crosshair Ranging for Estimating Distance - The monocular supports crosshair ranging method. You can observe the position of a target object relative to the crosshairs in the telescope to calculate the distance between the observer and the target. Ultra-Portable - Weighing just 51g and standing at 78mm tall, this single tube telescope is the perfect travel companion, providing powerful magnification without the added weight. Wide Applications - This monocular for adults is perfect for most of outdoor activities, such as bird watching, wildlife viewing, sports events watching, hiking, concert and more. Magnification Times:8X Lens:20mm Objective Lens Diameter:20mm Eyepiece Thread:16mm Weight:51g/1.8oz Colour:As Shown Material:Optical glass+ABS Package Contents: 1 * Monocular telescope 1 * Lens cleaning cloth 1 * Desiccant 1 * Lens rope 1 * English user manual 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.