Specifications: Material: Aluminum alloy / Copper Magnification: 25X Object diameter: 30mm Exit pupil diameter: 1.2mm Field of view: 270ft. At 1000yds.(162m/1000m) Minimum focusing distance: 6.5 ft Contraction length: 135mm / 5.3in Extended length: 33cm / 13.0in Product weight: 213g / 7.5oz Waterproof: Yes Features 1.HIGH QUALITY: The main components are of high quality aluminum alloy plating gold while the hand-held part is covered with high quality leather. 2.BRIGHT & CLEAR: This mini telescope uses BAK4 prism lens with great light transmission. 25X magnification and 30mm objective lens with HD resolution provide you with a bright, wide and far field of vision (270ft./1000yds.). 3.LIGHTWEIGHT & PORTABLE: This pocket-size monocular telescope will be your ideal travel partner, collapsible eyepiece with a very small volume and weight for easy storage, and the attached bag for convenient to carry it around with one finger. 4.DURABLE & WATERPROOF: Main components of this spyglass are quality metal construction and shiny brass finish. Its waterproof design can eliminate the worry in rainy days, but don't used it in a heavy rain or soaked in water. 5.WIDE APPLICATION: The compact telescope is quite suitable for watching sport events, up-close bird watching, hiking, travelling, sightseeing, etc. It helps to expand your horizons by seeing objects in distant or scene as if it were located very close to the eye. Notes: 1. Do not look directly at the sun through a telescope, otherwise it will hurt your eyes. 2. Please store the telescope in a moisture-free area if it is long term unused. 3. Wipe the lens with the soft lens cloth that comes with the telescope. If there are some stubborn stains, add one or two drops of alcohol to the cloth. It would be easy to remove. 4. Never attempt to clean the telescope internally or try to take it apart.