Active magnification: powerful magnifying mini-scope with powerful 7x magnification and 18 mm objective lens. Clear image: The fully coated lens ensures excellent light transmittance, and the image is clear and clear. Simple operation and durability: non-slip armor provides firm grip and is easy to grasp. Portable: When retracted, the size is 2.5 inches (about 6.4 cm), and the weight is less than 2 ounces (about 56.7 grams). It is small enough to fit in your hands, pockets, wallets, and bags. Applicable occasions: very suitable for camping, hiking, concerts, bird watching, boating, travel, sports events and other outdoor activities. This monocular telescope is made of super materials and can indeed be used for a long time.