1、Made of good quality ABS material, solid, durable and wear-resistant. 2、Adopts multi-layer optical film, ensuring excellent light transmission and brightness. 3、The telescope has 20 times zoom, which can adjust the focal length well. 4、Can be installed to mobile phones rear camera to take photos or video. It can also use with tripod or phone clip. 5、Suitable for sports events, concerts, bird watching, camping, fishing, golf, range and travel, etc. Features: 1. Made of good quality ABS material, solid, durable and wear-resistant. 2. Adopts multi-layer optical film, ensuring excellent light transmission and brightness. 3. The telescope has 20 times zoom, which can adjust the focal length well.  4. Can be installed to mobile phones rear camera to take photos or video. It can also use with tripod or phone clip.  5. Suitable for sports events, concerts, bird watching, camping, fishing, golf, range and travel, etc.  6. Lightweight and portable. The telescope can be used as a monocular.  Specifications: Material: ABS + Optic Glass + Rubber Color: Black Magnification: 20 X Lens Diameter: 21 mm/ 0.83 Inch Mini. Focus Distance: 3 m/ 118.11 Inch Exit Pupil Distance: 10 mm/ 0.39 Inch Weight: Approx. 157 g Packing List: 1 * Phone Lens 1 * Phone Clip 1 * Lens Cover 1 * Lens Clean Cloth