Features: 40X magnification and 50mm objective lens monocular telescope provides a clear and bright image, enjoys the beauty of the distance. The HD monocular telescope equipped with FMC green film and BAK4 prism, ensuring superior light transmission and brightness. Made of plastic and metal, with dust cap, prevent moisture, dust, and debris to keep it clear all the time, suitable for various environments. Hand strap and durable rubber armor with stripes can help you focus onyour target quickly with one hand and free from sliding. Large field of view (4921ft 10,389Yds), suitable for travel, fishing, camping, hiking, birds or match watching and other outdoor activities.