The item is 16x52 Optical monocular telescope made of plastic. It is equipped with the most excellent prism, and in its surface silver plating, and strive to refractive index achieve 98% above. And it is for water sports, out door activities, bird watching, walking, climbing, travel etc. Features - Color: mainly black. - Material: Plastic. - Size: Approx. 15.5 * 5.5 * 5.5cm(L * W * H). - and monocular telescope. - Equipped with the most excellent prism, and in its surface silver plating, and strive to refractive index achieve 98% above. - for water sports, out door activities, bird watching, walking, climbing, travel etc. Fashion and portable. - Presenting the and high power 16 x 52mm monocular. This durable and quality viewing device is a compact alternative to traditional style binoculars and telescopes. - Despite the relatively this monocular features fully coated optics and has a robust build. - Comes complete with a carry pouch cleaning cloth and instructions. Specification - Magnification: 16X. - Diameter: 21mm. - Field of view: 7°. - Field of view: 131m/ 1000m. - system: Roof. - Material: BK7. - Focus System: Central Focus Right mesh trim. - Exit Pupil Diameter: 2.6mm. - Exit pupil distance: 11.0mm. - Close focus distance: 2.13m. - Optical Coating: objective FMC eyepiece FMC blue film. - Waterproof: Life waterproof. - Package Size: 17 * 6.5 * 6.5cm. - Weight: 185g. Package list: 1 x Monocular 1 x Pouch 1 x Cleaning cloth 1 x Strap 1 x User manual